Note: There are other authors with the same name: H. P. Lovecraft (in error)
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Novels
- An den Bergen des Wahnsinns [German] (2017)
- At the Mountains of Madness (1936)
- At the Mountains of Madness (2014) with Howard Phillips Lovecraft
- At the Mountains of Madness: Volume I (2020)
- Berge des Wahnsinns [German] (1970)
- Berge des Wahnsinns [German] (2007) with Howard Phillips Lovecraft
- Berge des Wahnsinns [German] (2011)
- Berge des Wahnsinns [German] (2016)
- Berge des Wahnsinns: Erster Teil [German] (2022)
- Berge des Wahnsinns: Zweiter Teil [German] (2023)
- Charles Dexter Wardin tapaus [Finnish] (1992)
- Cthulhu hívása [Hungarian] (1993)
- Das Grauen vor der Tür [German] (1979) with August Derleth
- Das Tor des Verderbens [German] (1994) with August Derleth
- De bergen van de waanzin [Dutch] (1973) with Howard Phillips Lovecraft
- De zaak Charles Dexter Ward [Dutch] (1974) with Howard Phillips Lovecraft
- De zaak Charles Dexter Ward [Dutch] (1982)
- Der Fall Charles Dexter Ward [German] (1971)
- Der Fall Charles Dexter Ward [German] (2010) with Howard Phillips Lovecraft
- Der Fall Charles Dexter Ward [German] (2011)
- Der Fall Charles Dexter Ward [German] (2016)
- Der Fall Charles Dexter Ward [German] (2016)
- Hulluuden vuorilla [Finnish] (1991)
- L'affaire Charles Dexter Ward [French] (1956)
- L'affaire Charles Dexter Ward [French] (1972) with Howard P. Lovecraft
- L'affaire Charles Dexter Ward [French] (1991) with Howard Phillips Lovecraft
- L'affaire Charles Dexter Ward [French] (2016)
- L'affaire Charles Dexter Ward [French] (2021) with Howard Phillips Lovecraft
- Las montañas de la locura [Spanish] (1981)
- Le rôdeur devant le seuil [French] (1971) with A. Derleth
- Le rôdeur devant le seuil [French] (1992) with August Derleth
- Les montagnes de la démence [French] (2015)
- Les montagnes hallucinées [French] (1954)
- Les montagnes hallucinées [French] (1991) with Howard Phillips Lovecraft
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Les montagnes hallucinées?Les montagnes hallucinees[French] (1992)
- Les montagnes hallucinées [French] (1996) with Howard P. Lovecraft
- Les montagnes hallucinées [French] (2013)
- Les montagnes hallucinées [French] (2021) with Howard Phillips Lovecraft
- Les montagnes hallucinées: tome 1 [French] (2019)
- Nas Montanhas da Loucura [Portuguese] (1983)
- Nas montanhas da loucura [Portuguese] (1988)
- Nas montanhas da loucura [Portuguese] (2008)
- O caso de Charles Dexter Ward [Portuguese] (1987)
- O caso de Charles Dexter Ward [Portuguese] (2009)
- Os mortos podem voltar [Portuguese] (1950)
- The Case of Charles Dexter Ward (1943)
- The Case of Charles Dexter Ward (1952) with Howard Phillips Lovecraft
- The Eerie Adventures of the Lycanthrope Robinson Crusoe (2010) with Peter Clines and Daniel Defoe
- The Lurker at the Threshold (1945) with August Derleth
- 3 Tales of Horror (1967)
- A Casa das Bruxas [Portuguese] (1983)
- A Tumba e Outras Histórias [Portuguese] (1991)
-
A tumba e outras histórias?A tumba e outras historias[Portuguese] (2007)
- A Winter Wish and Other Poems (1977)
- At the Mountains of Madness and Other Novels (1964)
- At the Mountains of Madness and Other Novels of Terror (1968)
- At the Mountains of Madness and Other Stories (2017)
- At the Mountains of Madness and Other Tales of Terror (1968)
- At the Mountains of Madness and Other Tales of Terror (1968)
- At the Mountains of Madness and Other Weird Tales (2009)
- At the Mountains of Madness and Other Works of Weird Fiction (2011)
- Berge des Wahnsinns [German] (1970)
- Best Supernatural Stories of H. P. Lovecraft (1945)
- Beyond the Wall of Sleep (1943)
- Black Seas of Infinity (2001)
-
Chemarea lui Cthulhu și alte povestiri?Chemarea lui Cthulhu si alte povestiri[Romanian] (2019)
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Chemarea lui Cthulhu și alte povestiri stranii?Chemarea lui Cthulhu si alte povestiri stranii[Romanian] (2016)
- Chronik des Cthulhu-Mythos, Band I [German] (2011)
- Chronik des Cthulhu-Mythos, Band II [German] (2011)
- Collected Fiction Volume 1: 1905-1925: A Variorum Edition (2016)
- Collected Fiction Volume 3: 1931-1936: A Variorum Edition (2016)
- Collected Fiction Volume 4 (Revisions and Collaborations): A Variorum Edition (2017)
- Collected Poems (1963)
- Collected Poetical Works (unpublished)
- Collected Public Domain Works of H. P. Lovecraft (2008)
- Colui che sussurrava nel buio [Italian] (1983)
- Contos reunidos do mestre do horror cósmico [Portuguese] (2021) with Bruno Costa
- Crawling Chaos (1993)
- Crawling Chaos Selected Weird Fiction Volume 2: 1928-1935 (2013)
- Crawling Chaos Selected Weird Fiction Volume One: 1917-1927 (2012)
- Creeping Dementia (2007)
- Cry Horror! (1958)
- Cthlhu 1 [Swedish] (1988)
- Cthlhu 2 [Swedish] (1988)
- Cthulhu [German] (2009)
- Cthulhu [German] (2009) with Howard Phillips Lovecraft
- Cthulhu Mythos Tales (2017)
- Cthulhu: Geistergeschichten [German] (1968)
- Cthulhu: Le mythe [French] (2012)
- Cthulhu: Le mythe - Livre II [French] (2015)
- Cthulhus Ruf: Das Lesebuch [German] (2019)
- Da un altro mondo [Italian] (1995)
- Dagon and Other Macabre Tales (1965)
- Dagon and Other Macabre Tales (abridged) (1969)
- Dagon and Other Tales of the Macabre Cycle (2010)
- Dagon et autres nouvelles de terreur [French] (2009)
- Dagon et autres récits d'horreur [French] (2016)
- Dagon et autres récits d'horreur [French] (2016) with Howard Phillips Lovecraft
- Dagon et autres récits de terreur [French] (1969)
- Dans l'abîme du temps [French] (1954)
- Dark Dreamlands (2016)
- Das Ding auf der Schwelle: Unheimliche Geschichten [German] (1969)
- Das Grauen aus den Bergen [German] (2013) with Frank Belknap Long
- Das Grauen im Museum [German] (1984)
- Das Haar der Medusa [German] (2017)
- Das Haar der Medusa [German] (2017) with Howard Phillips Lovecraft
- Das schleichende Chaos [German] (2006)
- Das schleichende Chaos [German] (2006) with Howard Phillips Lovecraft
-
Demoni și miracole?Demoni si miracole[Romanian] (1995)
- Der Fall Charles Dexter Ward [German] (1971)
- Der geflügelte Tod [German] (2017)
- Der geflügelte Tod [German] (2017) with Howard Phillips Lovecraft
- Der kosmische Schrecken [German] (2005)
- Der kosmische Schrecken [German] (2005) with Howard Phillips Lovecraft
- Die dunkle Brüderschaft [German] (1987) with August Derleth
- Die geliebten Toten [German] (2017)
- Die geliebten Toten [German] (2017) with Howard Phillips Lovecraft
- Die Großen Alten [German] (2010)
- Die Großen Alten [German] (2010) with Howard Phillips Lovecraft
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Die Katzen von Ulthar und andere Erzählungen?Die Katzen von Ulthar und andere Erzaehlungen[German] (1980)
- Die lauernde Furcht [German] (2013)
- Dreams and Fancies (1962)
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Démons et merveilles?Demons et merveilles[French] (1955)
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Démons et merveilles?Demons et merveilles[French] (1955) with H.-P. Lovecraft
- El color que cayó del cielo [Spanish] (2004)
- El color que surgió del espacio y otros cuentos [Spanish] (1983)
- El Tumulo [Spanish] (2004)
- Eldritch Tales: A Miscellany of the Macabre (2011)
- En la cripta [Spanish] (1980)
- En La Cripta [Spanish] (2004)
- Essais - Correspondance - Poésie - Révisions [French] (2021)
- Essais - Correspondance - Poésie - Révisions [French] (2021) with Howard Phillips Lovecraft
- Four Prose Poems (1987)
- From the Pest Zone: The New York Stories (2003)
- Fungi from Yuggoth (1943)
- Fungi from Yuggoth (1987) with Howard Phillips Lovecraft
- Fungi from Yuggoth (2013)
- Fungi from Yuggoth and Other Poems (1971)
- Fungi from Yuggoth and Other Poems (2016)
- Griezelverhalen [Dutch] (1982)
- H. P. Lovecraft (2013)
- H. P. Lovecraft Fiction Collection (2011)
- H. P. Lovecraft Goes to the Movies (2011)
- H. P. Lovecraft Omnibus 1: At the Mountains of Madness and Other Novels of Terror (1985)
- H. P. Lovecraft Short Stories (2017)
- H. P. Lovecraft's Collected Fiction: A Variorum Edition (2015)
- H. P. Lovecraft's Creatures and Monsters - A Collection of Short Stories (2012)
- H. P. Lovecraft's Tales from the Dream Cycle - A Collection of Short Stories (2012)
- H. P. Lovecraft's Tales in the Cthulhu Mythos - A Collection of Short Stories (2012)
- H. P. Lovecraft's Tales of Strange Cities - A Collection of Short Stories (2012)
- H. P. Lovecraft: Das Gesamtwerk I [German] (2020)
- H. P. Lovecraft: Das Gesamtwerk II [German] (2020)
- H. P. Lovecraft: Das Gesamtwerk III [German] (2020)
- H. P. Lovecraft: Das Gesamtwerk IV [German] (2020)
- H. P. Lovecraft: Das Gesamtwerk V [German] (2020)
- H. P. Lovecraft: Das Gesamtwerk VI [German] (2020)
- H. P. Lovecraft: Das Werk [German] (2017)
- H. P. Lovecraft: Das Werk II [German] (2021)
- H. P. Lovecraft: Great Tales of Horror (2012)
- H. P. Lovecraft: Juvenilia, 1895-1905 (1984)
- H. P. Lovecraft: The Complete Fiction (2017)
- H. P. Lovecraft: The Complete Omnibus, Volume I: 1917-1926 (2016) with Finn J. D. John
- H.P. Lovecraft: Masters of the Weird Tale (2008)
- H.P. Lovecraft: Selected Works, Critical Perspectives and Interviews on His Influence (2018)
- H.P. Lovecraft: The Complete Fiction Omnibus Collection: The Prime Years: 1926-1936 (2018) with Finn J. D. John
- H.P. Lovecraft: The Complete Fiction Omnibus: The Early Years: 1908-1925 (2018) with Finn J. D. John
- Hallowe'en in a Suburb & Others: The Complete Poems from Weird Tales (2010)
- Heksensabbat [Dutch] (1969)
- Heksensabbat [Dutch] (1969) with Howard Phillips Lovecraft
- Herbert West: Reanimador [Portuguese] (2008)
- Het gefluister in de duisternis [Dutch] (1968)
- Het gefluister in de duisternis [Dutch] (1968) with Howard Phillips Lovecraft
- Het huis in de nevel [Dutch] (1976)
- HorrorBabble's Dream Cycle (2018)
- Horrorbabbles's Lovecraft Shorts: Volume 2 (2018)
- I miti dell'orrore [Italian] (1990)
- I mostri all'angolo della strada [Italian] (1980)
- I ratti nei muri e Il richiamo di Cthulhu [Italian] (2021)
- In der Gruft und andere makabre Geschichten [German] (1982)
- Je suis d'ailleurs [French] (1961)
- L'abomination de Dunwich [French] (1997)
- L'abomination de Dunwich [French] (1997) with Howard P. Lovecraft
- L'Appel de Cthulhu: The Call of Cthulhu [French] (2013)
-
L'horreur dans le cimetière?L'horreur dans le cimetiere[French] (1984)
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L'horreur dans le musée?L'horreur dans le musee[French] (1977)
- L'ombre venue de l'espace et autres contes [French] (1978) with A. Derleth
- La casa delle streghe [Italian] (1974)
- La casa delle streghe e altri racconti [Italian] (1967)
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La couleur tombée du ciel?La couleur tombee du ciel[French] (1954)
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La couleur tombée du ciel: suivi de: La chose sur le seuil?La couleur tombee du ciel: suivi de: La chose sur le seuil[French] (2015)
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La couleur tombée du ciel: suivi de: La chose sur le seuil?La couleur tombee du ciel: suivi de: La chose sur le seuil[French] (2015) with Howard Phillips Lovecraft
- La Llave de Plata [Spanish] (2004)
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La peur qui rôde et autres nouvelles?La peur qui rode et autres nouvelles[French] (2006)
- La sombra sobre Innsmouth y El que susurra en las tinieblas [Spanish] (2004)
- Las montañas de la locura [Spanish] (1981)
- Le cauchemar d'Innsmouth [French] (1995)
- Le cauchemar d'Innsmouth [French] (1995) with Howard P. Lovecraft
- Le cycle de Providence [French] (2021)
- Le cycle de Providence [French] (2021) with Howard Phillips Lovecraft
- Le mythe de Cthulhu [French] (1996)
- Le mythe de Cthulhu [French] (1996) with Howard P. Lovecraft
- Les autres dieux [French] (1995)
- Les contrées du rêve [French] (2010)
- Les contrées du rêve [French] (2018)
- Les contrées du rêve [French] (2021) with Howard Phillips Lovecraft
- Les montagnes hallucinées [French] (2013)
- Les montagnes hallucinées et autres récits d'exploration [French] (2021) with Howard Phillips Lovecraft
- Les trois histoires new-yorkaises [French] (2018)
- Lovecraft's Best Short Stories (2009)
- Lovecraft's Scariest Stories (2020)
- Lovecraft: Easy to Read: Completely Revised and Abridged (2018)
- Macabere verhalen [Dutch] (1967)
- Macabre Stories (2017)
- Marginalia (1944)
- Medusa's Coil and Others: The Annotated Revisions and Collaborations of H. P. Lovecraft, Volume 2 (2012)
- Miscellaneous Writings (1995)
- More Annotated H. P. Lovecraft (1999)
- Namenlose Kulte [German] (2006)
- Namenlose Kulte [German] (2006) with Howard Phillips Lovecraft
- Necronomicon [German] (2007)
- Necronomicon [German] (2007) with Howard Phillips Lovecraft
- Necronomicon (2014)
- Necronomicon: The Best Weird Tales of H. P. Lovecraft (2008)
- Night Ocean et autres nouvelles [French] (1986)
- Night Ocean et autres nouvelles [French] (1993) with Howard P. Lovecraft
- Nine Stories from The Horror in the Museum and Other Revisions (1971)
- O ciclo de Yig [Portuguese] (2018)
- O intruso [Portuguese] (2004)
- O medo à espreita e outras histórias [Portuguese] (2016)
- O mundo fantástico de H. P. Lovecraft [Portuguese] (2013)
- Os demónios de Randolph Carter [Portuguese] (1973)
- Os Melhores Contos de Howard Philips Lovecraft 1º volume [Portuguese] (2005)
- Os melhores contos de Howard Philips Lovecraft, 2º volume [Portuguese] (2007)
- Os melhores contos de Howard Philips Lovecraft, 3º volume [Portuguese] (2008)
- Os Melhores Contos de Howard Philips Lovecraft, 4º volume [Portuguese] (2009)
- Re-Animator und weitere Erzählungen [German] (2019)
- Reanimator (2015)
- Relatos de Terror [Galician] (1999)
- Relatos Fantásticos [Galician] (1999)
- Roddy McDowall Reads the Horror Stories of H. P. Lovecraft (1962)
- Récits horrifiques: Contes de jeunesse - récits humoristiques [French] (2021)
- Récits horrifiques: Contes de jeunesse - récits humoristiques [French] (2021) with Howard Phillips Lovecraft
- Saat von den Sternen / Fungi from Yuggoth [German] (2013)
- Selected Poetry (First Series) (1953)
- Selected Poetry (First Series) (1953) with Howard Phillips Lovecraft
- Selected Poetry (Second Series) (1955)
- Selected Poetry (Second Series) (1955) with Howard Phillips Lovecraft
- Seven H. P. Lovecraft Stories (2013)
- Shadows of Death (2005)
- Something About Cats and Other Pieces (1949)
- Stadt ohne Namen [German] (1973)
- Stories of the Dreamlands (2017)
- Supernatural Horror in Literature & Other Literary Essays (2011)
- Tales (2005)
- Tales of Cosmic Terror (2023)
- Tales of H. P. Lovecraft (1997)
- Tales of Horror (2017)
- Tales of Terror (2019)
- Temppeli, Nimetön kaupunki ja muita kertomuksia [Finnish] (1999)
- The Ancient Track: The Complete Poetical Works of H. P. Lovecraft (2001)
- The Annotated H. P. Lovecraft (1997)
- The Battle That Ended the Century / Collapsing Cosmoses (1992) with R. H. Barlow
- The Battle That Ended the Century / Collapsing Cosmoses (1992) with Robert H. Barlow
- The Best of H. P. Lovecraft (2010)
- The Best of H. P. Lovecraft (2021)
- The Best of H. P. Lovecraft - A Collection of Short Stories (2012)
- The Best of H. P. Lovecraft: Bloodcurdling Tales of Horror and the Macabre (1982)
- The Best of H. P. Lovecraft: Tales That Truly Terrify from the Master of Horror (2012)
- The Call of Cthulhu (2016)
- The Call of Cthulhu and Other Dark Tales (2009)
- The Call of Cthulhu and Other Stories (2017)
- The Call of Cthulhu and Other Stories (2022)
- The Call of Cthulhu and Other Stories (2023)
- The Call of Cthulhu and Other Tales of the Lovecraft Mythos (2011)
- The Call of Cthulhu and Other Weird Stories (1999)
- The Call of Cthulhu and Other Weird Tales (2011)
- The Cats of Ulthar and Other Stories (unpublished)
- The Classic Horror Stories (2013)
- The Colour Out of Space (2011)
- The Colour Out of Space (2020)
- The Colour Out of Space / A cor que caiu do espaço [Portuguese] (2014)
- The Colour Out of Space and Others (1964)
- The Complete Cthulhu Mythos Tales (2013)
- The Complete Tales of H. P. Lovecraft (2019)
- The Complete Works of H. P. Lovecraft (2020)
- The Crawling Chaos and Others: The Annotated Revisions and Collaborations of H. P. Lovecraft, Volume 1 (2012)
- The Dark Worlds of H. P. Lovecraft, Volume 7 (2007)
- The Dark Worlds of H. P. Lovecraft, Volume 8 (2007)
- The Doom That Came to Sarnath (1971)
- The Dream Cycle of H. P. Lovecraft (1995)
- The Dream-Quest of Unknown Kadath (1970)
- The Dream-Quest of Unknown Kadath and Other Oneiric Works (2011)
- The Dreams in the Witch House and Other Weird Stories (2004)
- The Dunwich Horror (1945)
- The Dunwich Horror (1969)
- The Dunwich Horror and Other Stories (2017)
- The Dunwich Horror and Other Weird Tales (1945)
- The Dunwich Horror and Others (1963)
- The Dunwich Horror and Others (abridged) (1963)
- The Essential Tales of H. P. Lovecraft (2021)
- The Fantastic Poetry (1990)
- The Gothic Stories of H. P. Lovecraft (2018)
- The H. P. Lovecraft Christmas Book (1984)
- The H. P. Lovecraft Collection (2015)
- The H. P. Lovecraft Collection: Classic Tales of Cosmic Horror (2016)
- The H. P. Lovecraft Collection: Classic Tales of Cosmic Horror (2016)
- The H. P. Lovecraft Omnibus 2: Dagon and Other Macabre Tales (1985)
- The H. P. Lovecraft Omnibus 3: The Haunter of the Dark and Other Tales (1985)
- The Haunter of the Dark (1951)
- The Haunter of the Dark and Other Tales of Horror (1951)
- The Haunter of the Dark and Other Tales of Terror (1965)
- The Hoard of the Wizard-Beast and One Other (1994) with R. H. Barlow
- The Hoard of the Wizard-Beast and One Other (1994) with Robert H. Barlow
- The Horror in the Burying Ground (1975)
- The Horror in the Museum (2007)
- The Horror in the Museum and Other Revisions (1970)
- The Horror in the Museum and Other Tales (1975)
- The Life & Times of Randolph Carter (2017)
- The Loved Dead and Other Revisions (1997)
- The Lurking Fear (2013)
- The Lurking Fear and Other Stories (1947)
- The Lurking Fear and Other Stories (1964)
- The Lurking Fear and Other Stories (1971)
- The Lurking Fear, The Music of Erich Zann, The Other Gods (2016)
- The Music of Erich Zann (2016) with Erick Wofford
- The Music of Erich Zann, The Nameless City, and Nyarlathotep (2008)
- The New Annotated H. P. Lovecraft (2014)
- The New Annotated H. P. Lovecraft (2014) with Howard Phillips Lovecraft
- The New Annotated H. P. Lovecraft: Beyond Arkham (2019)
- The New Annotated H. P. Lovecraft: Beyond Arkham (2019) with Howard Phillips Lovecraft
- The Outsider and Others (1939)
- The Randolph Carter Tales (2017)
- The Shadow Out of Time and Other Tales of Horror (1968) with August Derleth
- The Shadow Over Innsmouth and Other Stories of Horror (1971)
- The Shuttered Room and Other Tales of Horror (1970) with August Derleth
- The Shuttered Room and Other Tales of Terror (1971) with August Derleth
- The Survivor and Others (1957) with August Derleth
- The Thing on the Doorstep and Other Weird Stories (2001)
- The Tomb and Other Tales (1969)
- The Transition of H. P. Lovecraft: The Road to Madness (1996)
- The Ultimate Illustrated Weird Tales Collection, Pt. 1 (2020)
- The Watchers Out of Time (1991) with August Derleth
- The Watchers Out of Time and Others (1974) with August Derleth
- The Weird Shadow Over Innsmouth and Other Stories of the Supernatural (1944)
- The Weird Writings of H. P. Lovecraft: Vol 1 (2010)
- The Weird Writings of H. P. Lovecraft: Vol 2 (2010)
- The Whisperer in Darkness (2007)
- The Zombie Stories of H. P. Lovecraft (2015)
- Tutti i racconti 1897-1922 [Italian] (1989)
- Um Sussurro nas Trevas [Portuguese] (1983)
- Uncollected Prose & Poetry III (1982)
- Uncollected Prose and Poetry (1978)
- Uncollected Prose and Poetry 3 (1982)
- Uncollected Prose and Poetry II (1980)
- Vom Jenseits [German] (2005)
- Waking Up Screaming: Haunting Tales of Terror (2003)
- Weird Poems: The Complete Poems from Weird Tales (2015)
- Writings in the Tryout (1977)
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Το Κάλεσμα του Κθούλου και Δαγών?To Kalesma toe Kthoύloe kai Thayon[Greek] (2016)
To Kalesma toe Kthouloe kai Thayon
- At the Mountains of Madness, The Call of Cthulhu and The Music of Erich Zann (2014) [O]
- Classic Tales of Science Fiction & Fantasy (2016) [O] with Edgar Rice Burroughs and Arthur Conan Doyle and Jack London and Jules Verne and H. G. Wells
- Classic Tales of Science Fiction & Fantasy (2016) [O] with uncredited
- Collected Essays: Complete (2008) [O]
- Collected Fiction Volume 2: 1926-1930: A Variorum Edition (2016) [O]
- Cthulhu: Le mythe - Livre III [French] (2016) [O]
- Der silberne Schlüssel [German] (2013) [O]
- H. P. Lovecraft: Das Gesamtwerk [German] (2020) [O/1-6]
- Howard Phillips Lovecraft 1 [French] (1991) [O]
- Howard Phillips Lovecraft 1 [French] (1991) [O] with Howard Phillips Lovecraft
- Intégrale [French] (2021) [O]
- Intégrale [French] (2021) [O] with Howard Phillips Lovecraft
- Invasion der Tiefen Wesen [German] (2014) [O] with Brian Lumley
- Les montagnes hallucinées: suivi de: Dans l'abîme du temps [French] (1996) [O]
- Les montagnes hallucinées: suivi de: Dans l'abîme du temps [French] (1996) [O] with Howard P. Lovecraft
-
Par-delà le mur du sommeil?Par-dela le mur du sommeil[French] (1956) [O]
- The Call of Cthulhu and At the Mountains of Madness: Two Tales of the Mythos (2018) [O]
- The Classic H. P. Lovecraft Collection (2020) [O]
- The Complete Fiction (2011) [O]
- The Complete Fiction of H. P. Lovecraft (2014) [O]
- The Complete Weird-Fiction Works of H.P. Lovecraft: In One Volume (2019) [O] with Finn J. D. John
- The Complete Works (2016) [O]
- The Essential Tales of H.P. Lovecraft (2016) [O]
- The Fiction: Complete and Unabridged (2008) [O]
- The H. P. Lovecraft Collection (2017) [O]
- The H. P. Lovecraft Omnibus 1: At the Mountains of Madness and Other Novels of Terror (1985) [O]
- The World of H. P. Lovecraft (1971) [O] with August Derleth
- At the Mountains of Madness (Part 1 of 3) (1936)
- At the Mountains of Madness (Part 2 of 3) (1936)
- At the Mountains of Madness (Part 3 of 3) (1936)
- Charles Dexter Ward esete (part 1 of 4) [Hungarian] (1990) with Howard Phillips Lovecraft
- Charles Dexter Ward esete (part 2 of 4) [Hungarian] (1990) with Howard Phillips Lovecraft
- Charles Dexter Ward esete (part 3 of 4) [Hungarian] (1990) with Howard Phillips Lovecraft
- Charles Dexter Ward esete (part 4 of 4) [Hungarian] (1990) with Howard Phillips Lovecraft
- From the Dark (1922)
- Herbert West, reanimador (Part 3 of 6) [Spanish] (2004)
- Herbert West, reanimador (Part 4 of 6) [Spanish] (2005)
- Herbert West: Reanimator (part 1 of 6) (1942)
- Herbert West: Reanimator (part 2 of 6) (1942)
- Herbert West: Reanimator (part 3 of 6) (1942)
- Herbert West: Reanimator (part 4 of 6) (1942)
- Herbert West: Reanimator (part 5 of 6) (1943)
- Herbert West: Reanimator (part 6 of 6) (1943)
- Six Shots by Moonlight (1922)
- The Case of Charles Dexter Ward (Part 1 of 2) (1941)
- The Case of Charles Dexter Ward (Part 2 of 2) (1941)
- The Challenge from Beyond (Part 1 of 5) (1935) with C. L. Moore
- The Challenge from Beyond (Part 2 of 5) (1935) with A. Merritt
- The Challenge from Beyond (Part 3 of 5) (1935)
- The Challenge from Beyond (Part 4 of 5) (1935) with Robert E. Howard
- The Challenge from Beyond (Part 5 of 5) (1935) with Frank Belknap Long, Jr.
- The Dream Quest of Unknown Kadath (Part 1 of 4) (1948)
- The Dream Quest of Unknown Kadath (Part 2 of 4) (1948)
- The Dream Quest of Unknown Kadath (Part 3 of 4) (1948)
- The Dream Quest of Unknown Kadath (Part 4 of 4) (1948)
- The Horror from the Shadows (1922)
- The Lurking Fear (Part 1 of 4) (1923)
- The Lurking Fear (Part 2 of 4) (1923)
- The Lurking Fear (Part 3 of 4) (1923)
- The Lurking Fear (Part 4 of 4) (1923)
- The Plague Demon (1922)
- The Scream of the Dead (1922)
- The Shadow Over Innsmouth (Part 1 of 2) (2020)
- The Shadow Over Innsmouth (Part 2 of 2) (2020)
- The Tomb-Legions (1922)
- The Whisperer in Darkness (Part 1 of 2) (2015)
- The Whisperer in Darkness (Part 2 of 2) (2015)
- Bis dass die Zeit den Tod besiegt [German] (2011) with Tim Curran
- H.P. Lovecraft: The Complete Fiction Omnibus: Collaborations & Ghostwritings (2018) with Finn J. D. John
- H.P. Lovecraft: The Complete Fiction Omnibus: Supplement A: Collaborations & Ghostwritings (2017) with Finn J. D. John
- Howard Phillips Lovecraft 3 [French] (1992)
- Howard Phillips Lovecraft 3 [French] (1992) with Howard Phillips Lovecraft
-
La chose des ténèbres?La chose des tenebres[French] (1989) with August Derleth
-
La chose des ténèbres?La chose des tenebres[French] (1989) with A. Derleth
-
O mundo fantástico de H. P. Lovecraft volume 2?O mundo fantastico de H. P. Lovecraft volume 2[Portuguese] (2020)
- The Challenge from Beyond (1990) with Robert E. Howard and Murray Leinster and Frank Belknap Long and A. Merritt and C. L. Moore and Edward E. Smith and Harl Vincent and Donald Wandrei and Stanley G. Weinbaum
- The Challenge from Beyond (1990) with Robert E. Howard and Murray Leinster and Frank Belknap Long and A. Merritt and C. L. Moore and E. E. Smith and Harl Vincent and Donald Wandrei and Stanley G. Weinbaum
- The Tales of Inspector Legrasse (2005) with C. J. Henderson
- A History of the Necronomicon (1938)
- Alcestis: A Play (1985) with Sonia Greene
- Alcestis: A Play (1985) with Howard Phillips Lovecraft and Sonia Haft Greene Lovecraft
- An Epistle to Francis, Ld. Belknap (1987)
- An Epistle to the Rt. Honorable Mauric Wnter Moe, Esq. of Zythopolis, in the Northwest Territory of HIS MAJESTY's American Dominion by L. Theobald, Jun. (1987)
- Antarktos (1977)
- Beyond the Wall of Sleep (2014)
- Celui qui chuchotait dans les ténèbres [French] (2008)
- Chuchotements dans la nuit [French] (2017)
- Collapsing Cosmoses (1977) with R. H. Barlow
- Collapsing Cosmoses (1977) with Robert H. Barlow
- Cool Air (2024)
- Cthulhus Ruf [German] (2020)
- Dagon (2019)
- Dagon [French] (2019)
- Dagon [Italian] (2021)
- Dans l'abîme du temps [French] (2015) with Howard Phillips Lovecraft
- Das Grauen von Dunwich [German] (2023)
- De droomwereld van Kadath [Dutch] (1972) with Howard Phillips Lovecraft
- Der Flüsterer im Dunkeln [German] (1990)
- Der Flüsterer im Dunkeln [German] (2018)
- Der Schatten aus der Zeit [German] (1992)
- Die Traumfahrt zum unbekannten Kadath [German] (1980)
- Die Traumsuche nach dem unbekannten Kadath [German] (1992)
- Ex Oblivione (1969)
- Fasci di Lettere: H. P. Lovecraft [Italian] (2022)
- H. P. Lovecraft's Waste Paper: A Facsimile and Transcript of the Original Draft (1979)
- H.P. Lovecraft's the Call of Cthulhu for Beginning Readers (2017) with R. J. Ivankovic
- He (2022)
- Herbert West Reanimator (1977)
- History of the Necronomicon (1938)
- HorrorBabble's The Colour Out of Space (2018)
- I gatti di Ulthar [Italian] (2020)
- In the Walls of Eryx (2012)
- Kadath [Italian] (1994) with Howard P. Lovecraft
- L'appel de Cthulhu [French] (2017)
- L'appel de Cthulhu: suivi de Notes sur l'écriture de la fiction surnaturelle [French] (2015)
- L'ombra su Innsmouth [Italian] (2021) with Howard Phillips Lovecraft
- La cité sans nom [French] (2019)
- La quête onirique de Kadath l'inconnue [French] (1996) with Howard P. Lovecraft
- La quête onirique de Kadath l'inconnue [French] (1997)
- La sombra sobre Innsmouth [Spanish] (2004)
- Medusa's Coil (2023) with Zealia Bishop
- Medusa's Coil (2023) with Z. B. Bishop
- Medusa: A Portrait (1975)
- Memory (1969)
- Nyarlathotep (1969)
- Nyarlathotep (2019) with Howard Phillips Lovecraft
- Out of the Aeons (2012)
- Pickman's Model (2019)
- Re-Animator: Tales of Herbert West (1991)
- Schatten über Innsmouth [German] (1990)
- The Alchemist (2012)
- The Call of Cthulhu (2010)
- The Cats of Ulthar (1935)
- The Challenge from Beyond (1954) with Robert E. Howard and Frank Belknap Long and A. Merritt and C. L. Moore
- The Challenge from Beyond (2012)
- The Challenge from Beyond Drafts (2020) with Robert E. Howard and Frank Belknap Long and A. Merritt and C. L. Moore
- The Color Out of Space (2016)
- The Colour Out of Space (1982)
- The Curse of Yig (2023) with Zealia Bishop
- The Curse of Yig (2023) with Zealia Brown Reed
- The Doom That Came to Sarnath (2014)
- The Dream-Quest of Unknown Kadath (1955)
- The Dreams in the Witch House (2012)
- The Dreams in the Witch-House (2010)
- The Dunwich Horror (2012)
- The Festival (2022)
- The Haunter of the Dark (2024)
- The Horror at Red Hook (2012)
- The Hound (2019)
- The Illustrated Call of Cthulhu (2018)
- The Lurking Fear (1977)
- The Mound (2016)
- The Mound (2018) with Zealia Bishop
- The Mound (2018) with Zelia Bishop
- The Music of Erich Zann (2014)
- The Night Ocean (1982) with R. H. Barlow
- The Night Ocean (1982)
- The Night Ocean (1989) with Robert H. Barlow
- The Outsider (2019)
- The Quest of Iranon (2024)
- The Rats in the Walls (2012)
- The Shadow Out of Time (2010)
- The Shadow Out of Time: The Corrected Text (2001)
- The Shadow Over Innsmouth (1936)
- The Shunned House (1928)
- The Silver Key (2023)
- The Statement of Randolph Carter: Being Both the Original Holograph Version and Its Transcription (1976)
- The Temple (2022)
- The Thing on the Door-Step (2024)
- The Trap (2012)
- The Trap (2024) with Henry S. Whitehead
- The Trap (2024) with Henry S. Whitehead
- The Whisperer in Darkness (2008)
- The Young Folks' Ulysses (1982)
- The Young Folks' Ulysses (1982) with Howard Lovecraft
- Through the Gates of the Silver Key (2023) with E. Hoffmann Price
- Ténèbre sur Innsmouth [French] (2020)
- Under the Pyramids (2012)
- What the Moon Brings (1970)
- Winged Death (2012)
- A Means to Freedom: The Letters of H. P. Lovecraft and Robert E. Howard Volume 1: 1930-1932 (2009) with Robert E. Howard
- A Means to Freedom: The Letters of H. P. Lovecraft and Robert E. Howard Volume 2: 1933-1936 (2009) with Robert E. Howard
- Against Religion: The Atheist Writings of H. P. Lovecraft (2010)
- Autobiographical Writings (1992)
- Autobiography: Some Notes on a Nonentity (1963)
- Biografia di uno scrittore da quattro soldi [Italian] (2013)
- Clark Ashton Smith: Letters to H. P. Lovecraft (1987) with Clark Ashton Smith
- Collected Essays Volume 1: Amateur Journalism (2004)
- Collected Essays Volume 2: Literary Criticism (2004)
- Collected Essays Volume 3: Science (2005)
- Collected Essays Volume 4: Travel (2006)
- Collected Essays Volume 5: Philosophy; Autobiography and Miscellany (2007)
- Commonplace Book [French] (2016)
- Das übernatürliche Grauen in der Literatur [German] (2014)
- Dawnward Spire, Lonely Hill: The Letters of H. P. Lovecraft and Clark Ashton Smith (2017) with Clark Ashton Smith
- Die Literatur der Angst: Zur Geschichte der Phantastik [German] (1995)
- Die Literatur des Grauens [German] (1985)
- Ec'h-Pi-El Speaks: An Autobiographical Sketch by H. P. Lovecraft (1972)
- Essential Solitude: The Letters of H. P. Lovecraft and August Derleth (2008) with August Derleth and S. T. Joshi and David E. Schultz
- European Glimpses (1988) with Sonia Greene
- European Glimpses (1988) with Sonia H. Greene
- First Writings, Pawtuxet Valley Gleaner, 1906 (1976)
- Gegen die Religion: Der Mensch ist bedeutungslos: Atheistische Schriften [German] (2020)
- H. P. Lovecraft: Commonplace Book (1987)
- H. P. Lovecraft: Letters to Henry Kuttner (1990)
- H. P. Lovecraft: Letters to Maurice W. Moe and Others (2017) with S. T. Joshi and David E. Schultz
- H. P. Lovecraft: Letters to Richard F. Searight (1992)
- H. P. Lovecraft: Letters to Robert Bloch (1993)
- H.P. Lovecraft: Letters to C. L. Moore and Others (2017) with S. T. Joshi and David E. Schultz
- Hail, Klarkash-Ton!: Being Nine Missives Inscribed Upon Postcards (1971)
- In Defence of Dagon (1985) with S. T. Joshi
- Le livre de raison [French] (1991) with Howard Phillips Lovecraft
- Letters From New York (2005)
- Letters to Alfred Galpin (2003)
- Letters to Elizabeth Toldridge and Anne Tillery Renshaw (2014) with S. T. Joshi and David E. Schultz
- Letters to James F. Morton (2011)
- Letters to Rheinhart Kleiner (2005)
- Letters to Robert Bloch and Others (2015) with S. T. Joshi and David E. Schultz
- Letters to Wilfred B. Talman and Helen V. and Genevieve Sully (2019)
- Looking Backward (unknown)
- Lord of a Visible World: An Autobiography in Letters (1999)
- Lovecraft at Last (1975) with Willis Conover
- Memoirs of an Inconsequential Scribbler (1977)
- Mysteries of Time and Spirit: Letters of H. P. Lovecraft and Donald Wandrei (2002) with S. T. Joshi and David E. Schultz and Donald Wandrei
- O Fortunate Floridian: H. P. Lovecraft's Letters to R. H. Barlow (2007)
- O terror sobrenatural na literatura [Portuguese] (2006)
- Old Man (1934)
- Selected Essays (First Series) (1952)
- Selected Essays (First Series) (1952) with Howard Phillips Lovecraft
- Selected Essays (Second Series) (1953)
- Selected Essays (Second Series) (1953) with Howard Phillips Lovecraft
- Selected Letters (unpublished)
-
Selected Letters: 1911—1924?Selected Letters: 1911-1924(1965)
-
Selected Letters: 1925—1929?Selected Letters: 1925-1929(1968)
-
Selected Letters: 1929—1931?Selected Letters: 1929-1931(1971)
-
Selected Letters: 1932—1934?Selected Letters: 1932-1934(1976)
-
Selected Letters: 1934—1937?Selected Letters: 1934-1937(1976)
- Supernatural Horror in Literature (1945)
- Supernatural Horror in Literature (1945) with Howard Phillips Lovecraft
- The Amateur Journalist (1955)
- The Amateur Journalist (1955) with Howard Phillips Lovecraft
- The Annotated Supernatural Horror in Literature (2000)
- The Boiling Point (1985) with Forrest J. Ackerman and Clark Ashton Smith
- The Californian: 1934-1938 (1977)
- The Conservative (1990)
- The Conservative: Complete, 1915-1923 (1976)
- The Conservative: The Complete Issues 1915-1923 (2013)
- The Notes & Commonplace Book Employed by the Late H. P. Lovecraft (1938)
- The Occult Lovecraft (1975) with Anthony Raven
- The Vivisector (1990)
- To Quebec and the Stars (1976)
- Uncollected Letters (1986) with S. T. Joshi
-
Unheimlicher Horror: Das übernatürliche Grauen in der Literatur?Unheimlicher Horror: Das übernatuerliche Grauen in der Literatur[German] (1987)
- Writings in the United Amateur, 1915-1922 (2009)
- Writings in the United Amateur, 1915-1925 (1976)
- Yr Obt Servt: Some Postcards of Howard Phillips Lovecraft Sent to Wilfred Blanch Talman (1988)
-
Γάτες και Σκύλοι?Yates kai Skύloi[Greek] (2012)
-
"Jusqu'à ce que toutes les mers..."?"Jusqu'a ce que toutes les mers..."[French] (1977) with Robert H. Barlow
-
"The Pool," Recommendations for Revision—Synopsis?"The Pool," Recommendations for Revision-Synopsis(1987)
- "The Temple" (1925)
- "The White Ship": A Holographic Manuscript (1974)
- "Till A' the Seas" (1977) with R. H. Barlow
- "Till All the Seas" (1935) with R. H. Barlow
- "Till All the Seas" (1969) with Robert H. Barlow
- "Till All the Seas" (1975) with Robert H. Barlow
- "To All the Seas" (1970) with Robert H. Barlow
- A abominação de Dunwich [Portuguese] (2007)
- A Aparição das Trevas [Portuguese] (1975)
- A arvore no morro [Portuguese] (2020) with Duane W. Rimel
- A busca de Iranon [Portuguese] (2008)
- A busca de Iranon [Portuguese] (2013)
- A busca de Iranon [Portuguese] (2021)
- A Casa Abandonada [Portuguese] (1983)
- A casa maldita [Portuguese] (2008)
- A casa mortuária [Portuguese] (2007)
- A celebração [Portuguese] (2005)
- A chave de prata [Portuguese] (1973)
- A chave de prata [Portuguese] (2007)
- A chave de prata [Portuguese] (2021)
- A cidade sem nome [Portuguese] (2008)
- A cidade sem nome [Portuguese] (2013)
- A cidade sem nome [Portuguese] (2021)
- A coisa no luar [Portuguese] (1991)
- A coisa no luar [Portuguese] (2007)
- A Colina [Portuguese] (2018)
- A Cor que Caiu do Céu [Portuguese] (1983)
- A cor que caiu do céu [Portuguese] (2004)
- A cor que caiu do espaço [Portuguese] (2014)
-
A cor vinda do espaço?A cor vinda do espaco[Portuguese] (2013)
- A criatura na soleira da porta [Portuguese] (2005)
- A dança da Medusa [Portuguese] (2020) with Zealia Bishop
- A Declaração de Randolph Carter [Portuguese] (1983)
- A demanda onírica da Kadath desconhecida [Portuguese] (2009)
- A doce Ermengarda [Portuguese] (2021)
- A Estampa da Casa Maldita [Portuguese] (1983)
- A estranha casa na neblina [Portuguese] (2021)
- A estranha casa no alto da bruma [Portuguese] (2008)
- A estranha casa que pairava na névoa [Portuguese] (1991)
- A estranha casa que pairava na névoa [Portuguese] (2007)
- A fera na caverna [Portuguese] (1991)
- A fera na caverna [Portuguese] (2007)
- A gravura na velha casa [Portuguese] (2021)
- A gravura no livro da casa [Portuguese] (2007)
- A History of the Necronomicon (1938)
- A história do Necronomicon [Portuguese] (2013)
- A maldição de Sarnath [Portuguese] (2021)
- A Maldição de Yig [Portuguese] (2018)
- A maldição que se abateu sobre Sarnath [Portuguese] (2009)
- A música de Erich Zann [Portuguese] (2007)
- A música de Erich Zann [Portuguese] (2021)
- A nau branca [Portuguese] (2008)
- A oliveira [Portuguese] (2008)
- A rua [Portuguese] (1991)
- A rua [Portuguese] (2007)
- A rua [Portuguese] (2021)
- A sombra em Innsmouth [Portuguese] (2013)
- A sombra sobre Innsmouth [Portuguese] (2004)
- A sombra sobre Innsmouth [Portuguese] (2005)
- A sombra sobre Innsmouth [Portuguese] (2016)
- A sombra vinda do tempo [Portuguese] (2005)
- A transição de Juan Romero [Portuguese] (1991)
- A transição de Juan Romero [Portuguese] (2007)
- A transição de Juan Romero [Portuguese] (2021)
- A tumba [Portuguese] (1991)
- A tumba [Portuguese] (2007)
- A tumba [Portuguese] (2021)
- A végzet, amely elérte Sarnathot [Hungarian] (1994)
- A árvore [Portuguese] (2009)
- A árvore [Portuguese] (2021)
- Aer rece [Romanian] (2016)
- Air froid [French] (1961)
- Air froid [French] (1995) with Howard P. Lovecraft
- Air froid [French] (2021) with Howard Phillips Lovecraft
- Aire frío [Spanish] (1980)
- Aire frío [Spanish] (2004)
- Ajokoira [Finnish] (1988)
- Alcestis: A Play (1985) with Sonia Greene
- Alcestis: A Play (1985) with Howard Phillips Lovecraft and Sonia Haft Greene Lovecraft
- ALHAZRED, Abdul. The Necronomicon [Al Azif] (2014)
- Além da muralha do sono [Portuguese] (2016)
- Além da muralha do sono [Portuguese] (2021)
- Aprisionado com os Faraós [Portuguese] (1991)
- Aprisionado com os Faraós [Portuguese] (2007)
- Ar frio [Portuguese] (2021)
- Aria fredda [Italian] (1972) with Howard Phillips Lovecraft
- Aria fredda [Italian] (1980)
- Aria fredda [Italian] (1990)
- Arthur Jermyn (1935)
- Arthur Jermyn [French] (1961)
- Arthur Jermyn [German] (1973)
- Arthur Jermyn [French] (1997) with Howard P. Lovecraft
- Arthur Jermyn (2008) [graphic format] with Richard Corben
- As duas garrafas negras [Portuguese] (2020) with Wilfred Blanch Talman
- As ratazanas nas paredes [Portuguese] (2009)
- Asche [German] (2017) with C. M. Eddy junior
- Asche [German] (2020)
- Ashes (1924) with C. M. Eddy, Jr.
- Ashes (1924) with C. M. Eddy, Jr.
- At the Mountains of Madness (2017)
- At the Mountains of Madness (chapters I-II) (1936)
- Através das portas da chave de prata [Portuguese] (1973)
- Através dos portais da chave de prata [Portuguese] (2007)
- Attraverso le porte della chiave d'argento [Italian] (1967) with E. Hoffmann Price
- Até os mares [Portuguese] (2020) with R. H. Barlow
- Aus dem Jenseits [German] (2006) with Howard Phillips Lovecraft
- Aus dem Jenseits [German] (2011)
- Aus Äonen [German] (1984) with Hazel Heald
- Aus Äonen [German] (2017) with Hazel Heald
- Aus Äonen [German] (2020)
- Azathoth (1922)
- Azathoth [French] (1969)
- Azathoth [Italian] (1989)
- Azathoth [Portuguese] (1991)
- Azathoth [French] (1991) with Howard Phillips Lovecraft
- Azathoth [Portuguese] (2007)
- Azathoth [French] (2010)
- Azathoth [French] (2015)
- Azathoth [German] (2017)
- Azathoth [Portuguese] (2021)
- Azathoth [French] (2021) with Howard Phillips Lovecraft
- Bataille à la fin du siècle [French] (1993) with R. H. Barlow and Howard P. Lovecraft
- Beyond the Wall of Sleep (1919)
- Beyond the Wall of Sleep (1963) with Howard Phillips Lovecraft
- Bis zur Neige [German] (2017) with Robert H. Barlow
- Bis zur Neige [German] (2020)
- Brouillon abandonné pour Le cauchemar d'Innsmouth [French] (1991) with Howard Phillips Lovecraft
-
Cel care șușotea în întuneric?Cel care susotea in intuneric[Romanian] (2016)
- Celephais (1922)
- Celephais [French] (1969)
- Celephais [Spanish] (1975) with Howard Phillips Lovecraft
- Celephais [German] (1980)
- Celephais [German] (2005)
- Celephais [German] (2006) with Howard Phillips Lovecraft
- Celephais [Portuguese] (2008)
- Celephais [French] (2010)
- Celephais [German] (2013)
- Celephais [French] (2021) with Howard Phillips Lovecraft
- Celephaïs (1922)
- Celephaïs [Italian] (1989)
- Celephaïs (2019) with Howard Phillips Lovecraft
- Celephaïs [Portuguese] (2021)
- Celephaïs [German] (2021)
- Celui d'autre part [French] (1956) with Howard Phillips Lovecraft
- Celui d'autre part [French] (1967)
- Celui qui chuchotait dans le noir [French] (2012)
-
Celui qui chuchotait dans les ténèbres?Celui qui chuchotait dans les tenebres[French] (1954)
- Celui qui chuchotait dans les ténèbres [French] (1991) with Howard Phillips Lovecraft
-
Celui qui chuchotait dans les ténèbres?Celui qui chuchotait dans les tenebres[French] (1996) with Howard P. Lovecraft
- Celui qui chuchotait dans les ténèbres [French] (2000)
- Celui qui chuchotait dans les ténèbres [French] (2008)
- Celui qui chuchotait dans les ténèbres [French] (2021) with Howard Phillips Lovecraft
-
Celui qui hantait les ténèbres?Celui qui hantait les tenebres[French] (1956)
- Celui qui hantait les ténèbres [French] (1991) with Howard Phillips Lovecraft
- Celui qui hantait les ténèbres [French] (1995) with Howard P. Lovecraft
- Celui qui hantait les ténèbres [French] (2021) with Howard Phillips Lovecraft
- Celui qui hante les ténèbres [French] (2012)
- Cheia de argint [Romanian] (1995)
- Chemarea lui Cthulhu [Romanian] (2016)
- Christmastide (unknown)
- Chuchotements dans la nuit [French] (2017)
- Collapsing Cosmoses (1935) with R. H. Barlow
- Collapsing Cosmoses (1935) with Robert H. Barlow
- Collapsing Cosmoses (1938) with Robert H. Barlow
- Collapsing Cosmoses (1938) with uncredited
- Color Out of Space (2012)
- Colui che sussurrava nel buio [Italian] (1963)
- Colui che sussurrava nelle tenebre [Italian] (1980)
- Colui che sussurrava nelle tenebre [Italian] (1990)
- Colui che sussurrava nelle tenebre [Italian] (1995)
- Concluzie [Romanian] (1995)
- Cool Air (1928)
- Cool Air (2018)
- Cool Air (2019) with Howard Phillips Lovecraft
- Cosmos effondrés [French] (1993) with R. H. Barlow and Howard P. Lovecraft
-
Coșmarul din Innsmouth?Cosmarul din Innsmouth[Romanian] (2016)
- Cronaca di un viaggo in tram [Italian] (2019)
- Cthulhu [Swedish] (1988)
- Cthulhus Ruf [German] (1968)
- Cthulhus Ruf [German] (2005)
- Cthulhus Ruf [German] (2017)
-
Culoarea căzută din cer?Culoarea cazuta din cer[Romanian] (1992) with Howard Phillips Lovecraft
-
Culoarea din afara spațiului?Culoarea din afara spatiului[Romanian] (2016)
- Céléphaïs [French] (1992) with Howard Phillips Lovecraft
- Céléphaïs [French] (2018)
- Dagon (1919)
- Dagon (1919) with Howard Phillips Lovecraft
- Dagon [Dutch] (1967)
- Dagon [French] (1969)
- Dagon [German] (1973)
- Dagon [Italian] (1980)
- Dagon [Spanish] (1982)
- Dagon [Romanian] (1983)
- Dagon [Finnish] (1988)
- Dagon [German] (1988)
- Dagon [Italian] (1989)
- Dagon [French] (1991) with Howard Phillips Lovecraft
- Dagon [German] (2003)
- Dagon [Portuguese] (2004)
- Dagon [German] (2005) with Howard Phillips Lovecraft
- Dagon (2008) [graphic format] with Richard Corben
- Dagon [French] (2013)
- Dagon [French] (2015)
- Dagon [French] (2016) with Howard Phillips Lovecraft
- Dagon [Portuguese] (2016)
- Dagon [German] (2017)
- Dagon (2018)
- Dagon [Portuguese] (2021)
- Dagon [French] (2021) with Howard Phillips Lovecraft
- Dagon [Italian] (2021)
- Dagon [Italian] (2023)
- Dagon (Excerpt) [French] (2019)
- Dall'altrove [Italian] (1989)
-
Dans l'abîme du temps?Dans l'abime du temps[French] (1954)
- Dans l'abîme du temps [French] (1991) with Howard Phillips Lovecraft
- Dans l'abîme du temps [French] (1996) with Howard P. Lovecraft
- Dans l'abîme du temps [French] (2013)
- Dans l'abîme du temps [French] (2015) with Howard Phillips Lovecraft
- Dans l'abîme du temps [French] (2021) with Howard Phillips Lovecraft
- Dans le caveau [French] (2016) with Howard Phillips Lovecraft
- Dans le caveau [French] (2021) with Howard Phillips Lovecraft
- Dans les murs d'Eryx [French] (1969)
- Dans les murs d'Eryx [French] (1969) with Kenneth Sterling
- Das Amulett des Grabräubers [German] (1973)
- Das Bild im Haus [German] (1973)
- Das Bild im Haus [German] (2006) with Howard Phillips Lovecraft
- Das Bild im Haus [German] (2013)
- Das Bild im Haus [German] (2017)
- Das Buch [German] (2017)
- Das Ding auf der Schwelle [German] (1969)
- Das Ding auf der Schwelle [German] (1976) with Howard Phillips Lovecraft
- Das Ding auf der Schwelle [German] (2005) with Howard Phillips Lovecraft
- Das Ding auf der Schwelle [German] (2011)
- Das Ding auf der Schwelle [German] (2017)
- Das Erbe der Peabodys [German] (1987) with August Derleth
- Das Fest [German] (1973)
- Das Fest [German] (2007) with Howard Phillips Lovecraft
- Das Fest [German] (2011)
- Das Fest [German] (2017)
- Das geheimnisvolle Schiff [German] (2005)
- Das gemiedene Haus [German] (1973)
- Das gemiedene Haus [German] (1978) with uncredited
- Das gemiedene Haus [German] (2007) with Howard Phillips Lovecraft
- Das gemiedene Haus [German] (2007)
- Das gemiedene Haus [German] (2021)
- Das Geschöpf im Mondlicht [German] (2017) with J. Chapman Miske
- Das Geschöpf im Mondlicht [German] (2020)
- Das Giebelfenster [German] (1987) with August Derleth
- Das Grab [German] (1982)
- Das Grab [German] (2005)
- Das Grauen auf dem Friedhof [German] (2017) with Hazel Heald
- Das Grauen auf dem Friedhof [German] (2020)
- Das Grauen im Museum [German] (1984) with Hazel Heald
- Das Grauen im Museum [German] (2017) with Hazel Heald
- Das Grauen im Museum [German] (2020)
- Das Grauen in Red Hook [German] (2010) with Howard Phillips Lovecraft
- Das Grauen in Red Hook [German] (2013)
- Das Grauen in Red Hook [German] (2021)
-
Das Grauen pocht an meine Tür?Das Grauen pocht an meine Tuer[German] (1975)
- Das Grauen vom mittleren Brückenbogen [German] (1987) with August Derleth
- Das Grauen von Dunwich [German] (1968)
- Das Grauen von Dunwich [German] (2005)
- Das Grauen von Dunwich [German] (2006) with Howard Phillips Lovecraft
- Das Grauen von Dunwich [German] (2011)
- Das Grauen von Dunwich [German] (2017)
- Das Haar der Medusa [German] (1984) with Zealia Bishop
- Das Haar der Medusa [German] (2017) with Zealia Bishop
- Das Haar der Medusa [German] (2020)
- Das letzte Experiment [German] (1984) with Adolphe de Castro
- Das letzte Experiment [German] (2017) with Adolphe de Castro
- Das letzte Experiment [German] (2020)
- Das merkwürdig hochgelegene Haus im Nebel [German] (1973)
- Das Mond-Moor [German] (1982)
- Das Mond-Moor [German] (2005)
- Das Mond-Moor [German] (2009) with Howard Phillips Lovecraft
- Das Mond-Moor [German] (2009)
- Das Museum des Terrors [German] (1975) with Hazel Heald
- Das Nachtmeer [German] (1985) with Robert H. Barlow
- Das Nachtmeer [German] (2020)
- Das Rätsel des Friedhofs oder "Die Rache des Toten": Eine Detektivgeschichte [German] (2005)
- Das schleichende Chaos [German] (2017) with Elizabeth Berkeley
- Das schleichende Chaos [German] (2020)
- Das seltsame Haus hoch oben im Nebel [German] (2010) with Howard Phillips Lovecraft
- Das seltsame Haus hoch oben im Nebel [German] (2013)
- Das seltsame Haus hoch oben im Nebel [German] (2021)
- Das Tagebuch des Alonzo Typer [German] (2017) with William Lumley
- Das Tagebuch des Alonzo Typer [German] (2020)
- Das Tier in der Höhle [German] (1982)
- Das Tier in der Höhle [German] (2005)
- Das Tier in der Höhle [German] (2010) with Howard Phillips Lovecraft
- Das Tier in der Höhle [German] (2013)
- Das Unbeschreibliche [German] (2005)
- Das Ungeheuer aus dem Weltraum [German] (1974)
- Das Unheil, das über Sarnath kam [German] (2021)
- Das Unnennbare [German] (1982)
- Das Unnennbare [German] (2010) with Howard Phillips Lovecraft
- Das Unnennbare [German] (2011)
- Das Unsagbare [German] (2017)
- Das uralte Volk [German] (2017)
- Das Verderben, das nach Sarnath kam [German] (1988)
- Das Verderben, das über Sarnath kam [German] (1982)
- Das Verderben, das über Sarnath kam [German] (2005)
- Das Verderben, das über Sarnath kam [German] (2006) with Howard Phillips Lovecraft
- Das Verderben, das über Sarnath kam [German] (2013)
- Das vernagelte Zimmer [German] (1987) with August Derleth
-
Das Weiße Schiff?Das Weisse Schiff[German] (1980)
- Das Weiße Schiff [German] (2005)
- Das weiße Schiff [German] (2006) with Howard Phillips Lovecraft
- Das weiße Schiff [German] (2013)
- Das wimmelnde Chaos [German] (1984) with Elizabeth Berkeley
- De bezoeker uit de duisternis [Dutch] (1967)
- De buitenstaander [Dutch] (1968) with Howard Phillips Lovecraft
- De buitenstaander [Dutch] (1982)
- De droomwereld van Kadath [Dutch] (1972) with Howard Phillips Lovecraft
- De erfenis van Peabody [Dutch] (1968) with August Derleth
- De hond [Dutch] (1969) with Howard Phillips Lovecraft
- De hond [Dutch] (1972)
- De kamer met de luiken [Dutch] (1968) with August Derleth
- De katten van Ulthar [Dutch] (1980)
- De kleur uit de ruimte [Dutch] (1967)
- De kleur uit de ruimte [Dutch] (1981) with Howard Phillips Lovecraft
- De l'au-delà [French] (1969)
- De l'au-delà [French] (2015)
- De l'au-delà [French] (2021) with Howard Phillips Lovecraft
- De lamp van Alhazred [Dutch] (1968) with August Derleth
- De lokroep van Cthulhu [Dutch] (1968) with Howard Phillips Lovecraft
- De muren van Eryx [Dutch] (1976)
- De muziek van Erich Zahn [Dutch] (1968) with Howard Phillips Lovecraft
- De muziek van Erich Zann [Dutch] (1982)
- De ratten in de muren [Dutch] (1980) with Howard Phillips Lovecraft
- De ratten in de muren [Dutch] (1982)
- De schaduw uit de tijd [Dutch] (1969) with Howard Phillips Lovecraft
- De tempel [Dutch] (1967)
- De verdoemenis die over Sarnath kwam [Dutch] (1976)
- De verklaring van Randolph Carter [Dutch] (1969) with Howard Phillips Lovecraft
- De verklaring van Randolph Carter [Dutch] (1982)
- De verschrikkelijke oude man [Dutch] (1976)
- De verschrikking in het museum [Dutch] (1966) with Hazel Heald and Howard Phillips Lovecraft
- De verschrikking in het museum [Dutch] (1976) with Hazel Heald and Howard P. Lovecraft
- De verschrikking in Red Hook [Dutch] (1976)
- De verschrikking van Red Hook [Dutch] (1982)
- De visioenen van Richard Pickman [Dutch] (1968) with Howard Phillips Lovecraft
- Deaf, Dumb and Blind (1925) with C. M. Eddy, Jr.
- Deaf, Dumb and Blind (1925) with C. M. Eddy, Jr.
-
Den namnlösa staden?Den namnloesa staden[Swedish] (1988)
-
Depoziția lui Randolph Carter?Depozitia lui Randolph Carter[Romanian] (1995)
- Der Alchemist [German] (2005)
- Der Alchimist [German] (1982)
- Der Alchimist [German] (2009) with Howard Phillips Lovecraft
- Der Alchimist [German] (2013)
-
Der Außenseiter?Der Aussenseiter[German] (1969)
-
Der Außenseiter?Der Aussenseiter[German] (1990)
-
Der Außenseiter?Der Aussenseiter[German] (2005) with Howard Phillips Lovecraft
-
Der Außenseiter?Der Aussenseiter[German] (2013)
-
Der Außenseiter?Der Aussenseiter[German] (2019)
- Der Baum [German] (1982)
- Der Baum [German] (2005)
- Der Baum [German] (2006) with Howard Phillips Lovecraft
- Der Baum [German] (2013)
- Der Baum auf dem Hügel [German] (2003) with Duane W. Rimel
- Der Baum auf dem Hügel [German] (2020)
- Der Bluthund [German] (1977)
- Der boshafte Geistliche [German] (1982)
- Der boshafte Geistliche [German] (2005)
- Der böse Geistliche [German] (2010) with Howard Phillips Lovecraft
- Der böse Geistliche [German] (2013)
- Der dunkle Alptraum [German] (1978)
- Der Faustkampf am Ende des Jahrhunderts [German] (2003) with Robert H. Barlow
- Der Faustkampf am Ende des Jahrhunderts [German] (2020)
- Der Fluch des Yig [German] (1984) with Zealia Bishop
- Der Fluch des Yig [German] (2017) with Zealia Bishop
- Der Fluch des Yig [German] (2020)
- Der Fluch des Yig [German] (2023) with Zealia Brown Reed
- Der Flüsterer im Dunkeln [German] (1970)
- Der Flüsterer im Dunkeln [German] (2005) with Howard Phillips Lovecraft
-
Der Flüsterer im Dunkeln?Der Fluesterer im Dunkeln[German] (2011)
- Der Flüsterer im Dunkeln [German] (2017)
- Der Hund [German] (1973)
- Der Hund [German] (2010) with Howard Phillips Lovecraft
- Der Hund [German] (2013)
- Der Hund [German] (2017)
- Der Hügel [German] (1984) with Zealia Bishop
- Der Hügel [German] (2017) with Zealia Bishop
- Der Hügel [German] (2020)
- Der leuchtende Trapezoeder [German] (1968)
- Der Leuchtende Trapezoeder [German] (2005)
- Der Mann aus Stein [German] (2017) with Hazel Heald
- Der Mann aus Stein [German] (2020)
- Der Nachkomme [German] (1987) with August Derleth
- Der Nachkomme [German] (2017)
- Der Ruf des Cthulhu [German] (2003)
- Der Ruf des Cthulhu [German] (2006) with Howard Phillips Lovecraft
- Der Schatten aus dem All [German] (1987) with August Derleth
- Der Schatten aus der Zeit [German] (1969)
- Der Schatten aus der Zeit [German] (2006) with Howard Phillips Lovecraft
- Der Schatten aus der Zeit [German] (2011)
- Der Schatten aus der Zeit [German] (2017)
- Der Schatten in der Dachkammer [German] (1987) with August Derleth
- Der Schatten über Innsmouth [German] (2005) with Howard Phillips Lovecraft
- Der Schatten über Innsmouth [German] (2011)
- Der Schatten über Innsmouth [German] (2017)
- Der Schatz der Zauber-Bestie [German] (2003) with Robert H. Barlow
- Der Schatz der Zauber-Bestie [German] (2020)
- Der Schrecken der Finsternis [German] (2017)
- Der Schrecken von Dunwich [German] (1976)
- Der Schrecken von Martin's Beach [German] (2017) with Sonia Greene
- Der Schrecken von Martin's Beach [German] (2020)
- Der Schreckliche Alte Mann [German] (1982)
- Der Schreckliche Alte Mann [German] (2005)
- Der schreckliche alte Mann [German] (2010) with Howard Phillips Lovecraft
- Der schreckliche alte Mann [German] (2013)
- Der schreckliche alte Mann [German] (2021)
- Der silberne Schlüssel [German] (2009) with Howard Phillips Lovecraft
- Der silberne Schlüssel [German] (2013)
- Der silberne Schlüssel [German] (2017)
-
Der Silberschlüssel?Der Silberschluessel[German] (1980)
- Der Silberschlüssel [German] (2005)
- Der Tempel [German] (1973)
- Der Tempel [German] (2006) with Howard Phillips Lovecraft
- Der Tempel [German] (2013)
- Der Tempel [German] (2021)
- Der Vorfahr [German] (1987) with August Derleth
- Der Zauber des Aphlar [German] (2003) with Duane W. Rimel
- Der Zauber des Aphlar [German] (2020)
-
Der Übergang des Juan Romero?Der Uebergang des Juan Romero[German] (2009) with Howard Phillips Lovecraft
-
Der Übergang des Juan Romero?Der Uebergang des Juan Romero[German] (2013)
- Desde más allá [Spanish] (1966)
- Det Unevnelige [Norwegian (Bokmal)] (1976)
- Deux bouteilles noires [French] (1984) with Wilfred Blanch Talman
-
Die anderen Götter?Die anderen Goetter[German] (1973)
- Die Anderen Götter [German] (1982)
- Die Anderen Götter [German] (2005)
- Die Anderen Götter [German] (2006) with Howard Phillips Lovecraft
- Die Anderen Götter [German] (2013)
- Die anderen Götter [German] (2021)
- Die Aussage des Randolph Carter [German] (1979) with Howard Phillips Lovecraft
- Die Aussage des Randolph Carter [German] (1982)
- Die Aussage des Randolph Carter [German] (2009) with Howard Phillips Lovecraft
- Die Aussage des Randolph Carter [German] (2013)
- Die Aussage von Randolph Carter [German] (2005)
- Die Bedrohung aus dem Weltraum [German] (2000) with Robert E. Howard and Frank Belknap Long and Abraham Merritt and C. L. Moore
- Die Dichtkunst und die Götter [German] (2017) with Anna Helen Crofts
- Die Dichtkunst und die Götter [German] (2020)
- Die dunkle Brüderschaft [German] (1987) with August Derleth
- Die elektrische Hinrichtungsmaschine [German] (2017) with Adolphe de Castro
- Die elektrische Hinrichtungsmaschine [German] (2020)
- Die Exhumierung [German] (2017) with Duane W. Rimel
- Die Exhumierung [German] (2020)
- Die Experimente des Herbert West [German] (1978)
- Die Fakten über Arthur Jermyn und seine Familie [German] (2010) with Howard Phillips Lovecraft
- Die Fakten über Arthur Jermyn und seine Familie [German] (2013)
- Die Falle [German] (2017) with Henry S. Whitehead
- Die Falle [German] (2020)
- Die Farbe aus dem All [German] (1969)
- Die Farbe aus dem All [German] (2006) with Howard Phillips Lovecraft
- Die Farbe aus dem All [German] (2011)
- Die Farbe aus dem All [German] (2017)
- Die geheime Höhle oder John Lees Abenteuer [German] (2005)
- Die geliebten Toten [German] (2017) with C. M. Eddy junior
- Die geliebten Toten [German] (2020)
- Die geliebten Toten [German] (2023) with C. M. Eddy, Jr.
- Die Geschichte des Necronomicon (Eine Skizze) [German] (2017)
- Die Glocke im Turm [German] (2001) with Lin Carter
- Die Gruft [German] (2010) with Howard Phillips Lovecraft
- Die Gruft [German] (2013)
- Die Gruft [German] (2021)
- Die grüne Wiese [German] (1995) with Winifred Virginia Jackson
- Die grüne Wiese [German] (2020)
- Die holde Ermengarde [German] (1999)
- Die Katzen von Ulthar [German] (1978)
- Die Katzen von Ulthar [German] (1980)
- Die Katzen von Ulthar [German] (2005)
- Die Katzen von Ulthar [German] (2006) with Howard Phillips Lovecraft
- Die Katzen von Ulthar [German] (2013)
- Die Katzen von Ulthar [German] (2019)
- Die kleine Glasflasche [German] (2005)
- Die Lampe des Alhazred [German] (1987) with August Derleth
- Die lauernde Furcht [German] (1973)
- Die lauernde Furcht [German] (2009) with Howard Phillips Lovecraft
- Die lauernde Furcht [German] (2013)
- Die lauernde Furcht [German] (2021)
- Die Musik des Erich Zann [German] (1968)
- Die Musik des Erich Zann [German] (2005)
- Die Musik des Erich Zann [German] (2006) with Howard Phillips Lovecraft
- Die Musik des Erich Zann [German] (2011)
- Die Musik des Erich Zann [German] (2019)
- Die namenlose Stadt [German] (2017)
- Die Ratten im Gemäuer [German] (1968)
- Die Ratten im Gemäuer [German] (2005) with Howard Phillips Lovecraft
- Die Ratten im Gemäuer [German] (2005)
- Die Ratten im Gemäuer [German] (2013)
- Die Ratten in den Mauern [German] (1966)
- Die Ratten in den Mauern [German] (2019)
- Die Ratten in der Wand [German] (1984)
-
Die Schlucht der Dämonen?Die Schlucht der Daemonen[German] (1976)
- Die Sehnsucht Iranons [German] (1982) with Howard Phillips Lovecraft
- Die Straße [German] (2009) with Howard Phillips Lovecraft
- Die Straße [German] (2013)
- Die Traumfahrt zum unbekannten Kadath [German] (1980)
- Die Traumsuche nach dem unbekannten Kadath [German] (1980)
- Die Traumsuche nach dem unbekannten Kadath [German] (2005)
- Die Traumsuche nach dem unbekannten Kadath [German] (2009) with Howard Phillips Lovecraft
- Die Traumsuche nach dem unbekannten Kadath [German] (2013)
- Die Traumsuche nach dem unbekannten Kadath [German] (2021)
- Die Träume im Hexenhaus [German] (2017)
- Dincolo de poarta cheii de argint [Romanian] (1995)
- Discarded Draft of "The Shadow Over Innsmouth" (1949)
- Discarded Draught of "The Shadow over Innsmouth" (1949)
- Djupens vidunder [Swedish] (1978)
- Do além [Portuguese] (2008)
- Do além [Portuguese] (2016)
- Do além [Portuguese] (2021)
- Douce Ermengarde [French] (1992) with Howard Phillips Lovecraft
- Douce Ermengarde ou le cœur d'une paysanne [French] (1993) with Percy Simple
- Douce Ermengarde; ou, Le cœur d'une fille de la campagne [French] (2021) with Howard Phillips Lovecraft
-
Drömmarna i häxhuset?Droemmarna i haexhuset[Swedish] (1988)
-
Dulăul?Dulaul[Romanian] (2016)
- Durch die Tore des silbernen Schlüssels [German] (2009) with Howard Phillips Lovecraft and E. Hoffmann Price
- Durch die Tore des silbernen Schlüssels [German] (2013) with E. Hoffmann Price
- Durch die Tore des silbernen Schlüssels [German] (2020)
-
Durch die Tore des Silberschlüssels?Durch die Tore des Silberschluessels[German] (1980)
- Durch die Tore des Silberschlüssels [German] (2005) with E. Hoffman Price
- Ein kühler Hauch [German] (1982)
- Eine Reminiszenz an Dr. Samuel Johnson [German] (1999)
- El [Romanian] (2016)
- El color que cayó del cielo [Spanish] (2004)
- El color que surgió del espacio [Spanish] (1983)
- El color surgido del espacio [Spanish] (1964)
- El color surgido del espacio [Spanish] (1980)
- El extraño [Spanish] (1963) with Howard Philips Lovecraft
- El grabado en la casa [Spanish] (1980)
- El horror de Dunwich [Spanish] (1958)
- El horror de Red Hook [Spanish] (2004)
- El llamado de Cthulhu [Spanish] (2004)
- El modelo de Pickman [Spanish] (2004)
- El muro de Eryx [Spanish] (1972) with Kenneth Sterling
- El ser en el umbral [Spanish] (1980)
- El templo [Spanish] (1974) with Howard Phillips Lovecraft
- El terrible anciano [Spanish] (1980)
- El terror del arco central [Spanish] (2016) with August Derleth and Howard Phillips Lovecraft
- El tesoro del monstruo-hechicero [Spanish] (2010) with Robert H. Barlow
- Ele [Portuguese] (1991)
- Ele [Portuguese] (2007)
- Ele [Portuguese] (2008)
- Ele [Portuguese] (2021)
- Em Sonhos, à procura da desconhecida Kadath [Portuguese] (1973)
- En la cripta [Spanish] (1980)
- En la cripta [Spanish] (2004)
- En rampant dans le chaos [French] (1975) with Elizabeth Berkeley
- Entre as paredes de Eryx [Portuguese] (1991)
- Entre as paredes de Eryx [Portuguese] (2007) with Kenneth Sterling
- Er [German] (1973)
- Er [German] (2009) with Howard Phillips Lovecraft
- Er [German] (2013)
- Er [German] (2021)
- Ex-Barone [Italian] (1989)
- Factos acerca do falecimento Arthur Jermyn e sua família [Portuguese] (2007)
- Factos respeitantes ao defunto Arthur Jermyn e sua família [Portuguese] (2004)
- Facts Concerning the Late Arthur Jermyn and His Family (1987)
- Facts Concerning the Late Arthur Jermyn and His Family (2019) with Howard Phillips Lovecraft
- Faits concernant feu Arthur Jermyn et sa famille [French] (2021) with Howard Phillips Lovecraft
-
Fapte privitoare la defunctul Arthur Jermyn și familia lui?Fapte privitoare la defunctul Arthur Jermyn si familia lui[Romanian] (2016)
- Fasan i Dunwich [Swedish] (1988)
- Fasci di Lettere: H. P. Lovecraft [Italian] (2022)
- Fatos acerca do falecido Arthur Jermyn e sua família [Portuguese] (2021)
- Fatos referentes ao falecido Arthur Jermyn [Portuguese] (2016)
- Festivalen [Swedish] (1988)
- Flügel des Todes [German] (1984) with Hazel Heald
- Flügel des Todes [German] (2017) with Hazel Heald
- Flügel des Todes [German] (2020)
- Four O'Clock (1949) with Sonia Greene
- Four O'Clock (1949) with Sonia Greene
- Four O'Clock (1949) with Sonia H. Greene
- Four O'Clock (1949) with Sonia Haft Greene
- From At the Mountains of Madness (2004)
- From Beyond (1934)
- From Beyond (2019) with Howard Phillips Lovecraft
- from The Call of Cthulhu (2000)
- Färg bortom tid och rom [Swedish] (1988)
- Gefangen bei den Pharaonen [German] (1982)
- Gefangen bei den Pharaonen [German] (2005) with Harry Houdini
- Gefangen bei den Pharaonen [German] (2007) with Howard Phillips Lovecraft
- Gefangen bei den Pharaonen [German] (2013)
- Geschichte des Necronomicon [German] (2018)
- Geschichte des Necronomicons [German] (2007) with Howard Phillips Lovecraft
- Geschichte des Necronomicons [German] (2011)
- Gli altri dei [Italian] (1989)
- Grauen in Red Hook [German] (1973)
- Han som kom tilbake [Norwegian (Bokmal)] (unknown) with August Derleth
- He (1926)
- He (2019) with Howard Phillips Lovecraft
- Heksensabbat [Dutch] (1969) with Howard Phillips Lovecraft
- Herbert West – elvyttäjä [Finnish] (1988)
- Herbert West – Reanimator [German] (2006) with Howard Phillips Lovecraft
- Herbert West – Reanimator [German] (2011)
-
Herbert West — der Wiedererwecker?Herbert West - der Wiedererwecker[German] (1973)
- Herbert West, reanimador: Desde la oscuridad [Spanish] (2005) with Howard Phillips Lovecraft
- Herbert West, Reanimator (2018)
- Herbert West, rianimatore [Italian] (1980)
- Herbert West, rianimatore [Italian] (1989)
- Herbert West, réanimateur [French] (1969)
- Herbert West, réanimateur [French] (2016)
- Herbert West, Wiedererwecker [German] (2017)
- Herbert West: Reanimador [Portuguese] (2008)
- Herbert West: Reanimador . [Portuguese] (2021)
- Herbert West: Reanimator (1943)
- Herbert West: Reanimator (2014) with Howard Phillips Lovecraft
- Herbert West: Réanimateur [French] (2021) with Howard Phillips Lovecraft
-
Herbert West—Re-animator?Herbert West-Re-animator(1994)
-
Herbert West—Reanimator?Herbert West-Reanimator(1943)
- Het ding op de drempel [Dutch] (1949)
- Het gefluister in de duisternis [Dutch] (1968) with Howard Phillips Lovecraft
- Het gemeden huis [Dutch] (1976)
- Het huis in de nevel [Dutch] (1976)
- Het huis van verderf [Dutch] (1976)
- Het maanmoeras [Dutch] (1969) with Howard Phillips Lovecraft
- Het maanmoeras [Dutch] (1982)
- Het onzienbare [Dutch] (1967)
- Het vreemde hoge huis in de mist [Dutch] (1982)
- Het zolderraam [Dutch] (1968) with August Derleth
- Hij [Dutch] (1967)
- Hipnos [Portuguese] (2021)
- Histoire du Necronomicon [French] (1991) with Howard Phillips Lovecraft
- Histoire du Necronomicon [French] (2015)
- Histoire du Necronomicon [French] (2021) with Howard Phillips Lovecraft
- Histoire du Nécronomicon [French] (1993) with Howard P. Lovecraft
- History and Chronology of the Necronomicon (1943)
- History of the "Necronomicon" (2016)
- History of the Necronomicon (1938)
- History of the Necronomicon (An Outline) (1992)
- História do Necronomicon [Portuguese] (2021)
- Horreur à Red Hook [French] (1969)
- Horreur à Red Hook [French] (2016)
- Horreur à Red Hook [French] (2018)
- Horreur à Red Hook [French] (2021) with Howard Phillips Lovecraft
- Horror em Martin's Beach [Portuguese] (2013)
- Horror em Red Hook [Portuguese] (2009)
- Horror en el museo [Spanish] (1973) with Hazel Heald and Howard Phillips Lovecraft
- Hors du temps [French] (1975) with Hazel Heald
- HP's Mad Gibs (2020) with Norm Sherman
- Hypnos (1922)
- Hypnos [French] (1964)
- Hypnos [French] (1969)
- Hypnos [German] (1982)
- Hypnos [Italian] (1989)
- Hypnos [French] (1991) with Howard Philipps Lovecraft
- Hypnos [German] (2005)
- Hypnos [German] (2006) with Howard Phillips Lovecraft
- Hypnos [French] (2010)
- Hypnos [German] (2013)
- Hypnos [French] (2018)
- Hypnos [German] (2019)
- Hypnos [French] (2021) with Howard Phillips Lovecraft
- Hypnos [2] (1924)
- Hän, joka tuli käymään [Finnish] (1988)
- I gatti di Ulthar [Italian] (1989)
- I gatti di Ulthar [Italian] (1998) with Howard Phillips Lovecraft
- I gatti di Ulthar [Italian] (2020)
- I gatti di Ulthar [Italian] (2020) with Howard Phillips Lovecraft
- I ratti nei muri [Italian] (2021)
- I ratti nel muro [Italian] (1980)
- I topi nel muro [Italian] (1990)
- Ibid (1938)
- Ibid [French] (1992) with Howard Phillips Lovecraft
- Ibid [French] (1993) with Howard P. Lovecraft
- Ibid [German] (2005)
- Ibid [Portuguese] (2021)
- Ibid [French] (2021) with Howard Phillips Lovecraft
- Il cane [Italian] (1994) with Howard Phillips Lovecraft
- Il colore venuto dal cielo [Italian] (1963)
- Il colore venuto dallo spazio [Italian] (1980)
- Il colore venuto dallo spazio [Italian] (1990)
- Il colore venuto dallo spazio [Italian] (1993) with Howard Phillips Lovecraft
- Il colore venuto dallo spazio [Italian] (1995)
- Il miraggio dello sconosciuto Kadath [Italian] (1967)
- Il mistero del camposanto o la vendetta del morto [Italian] (1989)
- Il modello di Pickman [Italian] (1963)
- Il modello di Pickman [Italian] (1980)
- Il modello di Pickman [Italian] (1990)
- Il Prato Verde [Italian] (1989) with Winifred Jackson
- Il richiamo di Cthulhu [Italian] (1980)
- Il richiamo di Cthulhu [Italian] (1990)
- Il richiamo di Cthulhu [Italian] (2021)
- Il segugio [Italian] (1989)
- Il sopravvissuto [Italian] (1975) with August Derleth and Howard Phillips Lovecraft
- Il Tempio [Italian] (1989)
- Il Terribile Vecchio [Italian] (1989)
-
Ilustrația din carte?Ilustratia din carte[Romanian] (2016)
- Imprisoned with the Pharaohs (1924)
- Imprisoned with the Pharaohs (1924) with Houdini
- Imprisoned with the Pharaohs (1965) with Harry Houdini
- Imprisoned with the Pharaohs (1970) with Harry Houdini
- Imprisoned with the Pharaohs [2] (2019) with Houdini
- In de muren van Eryx [Dutch] (1982)
- In den Mauern von Eryx [German] (1982)
- In den Mauern von Eryx [German] (2005) with Kenneth Sterling
- In den Mauern von Eryx [German] (2007) with Howard Phillips Lovecraft and Kenneth Sterling
- In den Mauern von Eryx [German] (2013) with Kenneth Sterling
- In den Mauern von Eryx [German] (2020)
- In der Gruft [German] (1976)
- In der Gruft [German] (1982)
- In der Gruft [German] (2005)
- In der Gruft [German] (2006) with Howard Phillips Lovecraft
- In der Gruft [German] (2013)
- In the Vault (1925)
- In the Vault (2018)
- In the Wall of Eryx (1939) with Kenneth Sterling
- In the Walls of Eryx (1939) with Kenneth Sterling
- In the Walls of Eryx (1939)
- In the Walls of Eryx (1939) with Kenneth J. Sterling
- Innsmouth Clay (1971) with August Derleth
- Iranonin etsintä [Finnish] (1988)
- Iranons Suche [German] (1982)
- Iranons Suche [German] (2005)
- Iranons Suche [German] (2006) with Howard Phillips Lovecraft
- Iranons Suche [German] (2013)
- Iranons Suche [German] (2021)
- Je suis d'ailleurs [French] (1961)
- Je suis d'ailleurs [French] (1997) with Howard P. Lovecraft
- Je suis d'ailleurs [French] (2016)
- Je suis d'ailleurs [French] (2021) with Howard Phillips Lovecraft
- Jenseits der Mauer des Schlafes [German] (1982)
- Jenseits der Mauer des Schlafes [German] (2006) with Howard Phillips Lovecraft
- Jenseits der Mauer des Schlafes [German] (2013)
- Jenseits der Mauer des Schlafes [German] (2017)
- Jenseits der Mauer des Schlafs [German] (2005)
- John, the Detective (unpublished)
-
Juan Romeros Übergang?Juan Romeros Uebergang[German] (2021)
- Juhlapäivä [Finnish] (1991)
- Jäger der Finsternis [German] (2006) with Howard Phillips Lovecraft
- Jäger der Finsternis [German] (2011)
- Kadath [Italian] (1994) with Howard P. Lovecraft
- Koelte [Dutch] (1969) with Howard Phillips Lovecraft
- Koelte [Dutch] (1981) with Howard Philips Lovecraft
- Koelte [Dutch] (1982)
- Kuusuo [Finnish] (1988)
- Kuvasta tekoihin [Finnish] (1988)
- Kühle Luft [German] (1979)
- Kühle Luft [German] (1982)
- Kühle Luft [German] (2005)
- Kühle Luft [German] (2010) with Howard Phillips Lovecraft
- Kühle Luft [German] (2013)
- Kühle Luft [German] (2019)
- L'abitatore del buio [Italian] (1980)
- L'abitatore del buio [Italian] (1990)
- L'abomination de Dunwich [French] (1954)
- L'abomination de Dunwich [French] (1991) with Howard Phillips Lovecraft
- L'abomination de Dunwich [French] (1997) with Howard P. Lovecraft
- L'abomination de Dunwich [French] (2021) with Howard Phillips Lovecraft
- L'albero [Italian] (1989)
- L'albero sulla collina [Italian] (2023) with Duane W. Rimel
- L'alchimista [Italian] (1989)
- L'alchimiste [French] (1969)
- L'alchimiste [French] (1991) with Howard Phillips Lovecraft
- L'alchimiste [French] (2021) with Howard Phillips Lovecraft
-
L'ancêtre?L'ancetre[French] (1978) with A. Derleth
- L'ancêtre [French] (1992) with August Derleth
- L'antenato [Italian] (1976) with August Derleth and Howard Phillips Lovecraft
- L'appel de Cthulhu [French] (1954)
- L'appel de Cthulhu [French] (1975) with Howard Phillips Lovecraft
- L'appel de Cthulhu [French] (1996) with Howard P. Lovecraft
- L'appel de Cthulhu [French] (1998)
- L'appel de Cthulhu [French] (2012)
- L'appel de Cthulhu [French] (2013)
- L'appel de Cthulhu [French] (2013)
- L'appel de Cthulhu [French] (2015)
- L'appel de Cthulhu [French] (2021) with Howard Phillips Lovecraft
- L'arbre [French] (1969)
- L'arbre [French] (1992) with Howard Phillips Lovecraft
- L'arbre [French] (2018)
- L'arbre [French] (2021) with Howard Phillips Lovecraft
- L'argile bleue d'Innsmouth [French] (1992) with August Derleth
- L'essere nella caverna [Italian] (1989)
- L'estraneo [Italian] (1980)
- L'estraneo [Italian] (1989)
-
L'exécuteur des hautes œuvres?L'exécuteur des hautes oeuvres[French] (1984) with Adolpho de Castro
-
L'habitué des ténèbres?L'habitue des tenebres[French] (1972) with Howard Phillips Lovecraft
- L'homme de pierre [French] (1975) with Hazel Heald
- L'homme de pierre [French] (2021) with Hazel Heald and Howard Phillips Lovecraft
-
L'horreur dans le cimetière?L'horreur dans le cimetiere[French] (1975) with Hazel Heald
- L'horreur dans le cimetière [French] (2021) with Hazel Heald and Howard Phillips Lovecraft
-
L'horreur dans le musée?L'horreur dans le musee[French] (1975) with Hazel Heald
- L'horreur dans le musée [French] (2021) with Hazel Heald and Howard Phillips Lovecraft
- L'horreur de l'arche centrale [French] (1992) with August Derleth
- L'horreur à Dunwich [French] (2012)
-
L'héritage Peabody?L'heritage Peabody[French] (1978) with A. Derleth
- L'héritage Peabody [French] (1992) with August Derleth
- L'image dans la maison [French] (2021) with Howard Phillips Lovecraft
- L'indicible [French] (1961)
- L'indicible [French] (1995) with Howard P. Lovecraft
- L'indicible [French] (2016)
- L'innommable [French] (2016) with Howard Phillips Lovecraft
- L'innommable [French] (2021) with Howard Phillips Lovecraft
- L'océan de la nuit [French] (2021) with Robert H. Barlow and Howard Phillips Lovecraft
- L'ombra calata dal tempo [Italian] (1987) with Howard Phillips Lovecraft
- L'ombra calata dal tempo [Italian] (1990)
- L'ombra su Innsmouth [Italian] (2019)
- L'ombra su Innsmouth [Italian] (2021) with Howard Phillips Lovecraft
- L'ombre dans la mansarde [French] (1992) with August Derleth
- L'ombre immémoriale [French] (2015)
- L'ombre venue de l'espace [French] (1978) with A. Derleth
- L'ombre venue de l'espace [French] (1992) with August Derleth
- L'orrore di Dunwich [Italian] (1980)
- L'orrore di Dunwich [Italian] (1990)
- L'orrore di Martin's Beach [Italian] (1989) with Sonia Greene
- L'échéance [French] (1966) with August Derleth
- L'étrange maison haute dans la brume [French] (1969)
- L'étrange maison haute dans la brume [French] (1991) with Howard Phillips Lovecraft
- L'étrange maison haute dans la brume [French] (2010)
- L'étrange maison haute dans la brume [French] (2016) with Howard Phillips Lovecraft
- L'étrange maison haute dans la brume [French] (2018)
- L'étrange maison haute dans la brume [French] (2021) with Howard Phillips Lovecraft
- L'étranger [French] (2016) with Howard Phillips Lovecraft
- La bataille qui marqua la fin du siècle [French] (1992) with Robert H. Barlow and Howard Phillips Lovecraft
- La bestia hocicuda [Spanish] (2010) with J. Vernon Shea
- La bottiglia di vetro [Italian] (1989)
- La bête dans la caverne [French] (2021) with Howard Phillips Lovecraft
- La bête de la caverne [French] (1969)
- La bête de la caverne [French] (1991) with Howard Phillips Lovecraft
- La bête de la caverne [French] (2016)
- La casa apartada [Spanish] (1965)
- La casa delle streghe [Italian] (1967)
- La casa delle streghe [Italian] (1990)
- La casa maldita [Spanish] (1981)
- La casa sfuggita [Italian] (1990)
- La caverna segreta o l'avventura di John Lee [Italian] (1989)
- La caverne secrète ou L'aventure de John Lee [French] (1991) with Howard Phillips Lovecraft
- La caverne secrète; ou, L'aventure de John Lee [French] (2021) with Howard Phillips Lovecraft
- La chambre aux volets clos [French] (1964) with August Derleth
- La chambre aux volets clos [French] (1985) with August Derleth
- La chambre condamnée [French] (1992) with August Derleth
- La chambre secrète [French] (1966) with August Derleth
-
La chevelure de Méduse?La chevelure de Meduse[French] (1984) with Zealia Bishop
- La chiave d'argento [Italian] (1967)
- La chiave d'argento [Italian] (1990)
- La chose dans la clarté lunaire [French] (1969)
-
La chose des ténèbres?La chose des tenebres[French] (1989) with Howard Phillips Lovecraft
- La chose sur le seuil [French] (2015) with Howard Phillips Lovecraft
- La città senza nome [Italian] (1981) with Howard Phillips Lovecraft
- La città senza nome [Italian] (1989)
-
La cité sans nom?La cite sans nom[French] (1961)
-
La cité sans nom?La cite sans nom[French] (1981) with Howard Philips Lovecraft
- La cité sans nom [French] (1991) with Howard Phillips Lovecraft
- La cité sans nom [French] (1997) with Howard P. Lovecraft
- La cité sans nom [French] (2012)
- La cité sans nom [French] (2013)
- La cité sans nom [French] (2021) with Howard Phillips Lovecraft
- La ciudad sin nombre [Spanish] (1963) with Howard Philips Lovecraft
-
La clé d'argent?La cle d'argent[French] (1955) with H.-P. Lovecraft
- La clé d'argent [French] (1992) with Howard Phillips Lovecraft
- La clé d'argent [French] (2010)
- La clé d'argent [French] (2018)
- La clé d'argent [French] (2021) with Howard Phillips Lovecraft
- La cosa bajo la luz de la luna [Spanish] (2010) with J. Chapman Miske
- La cosa en la claridad de la luna [Spanish] (1975) with Howard Phillips Lovecraft and J. Chapman Miske
- La cosa sulla soglia [Italian] (1980)
- La cosa sulla soglia [Italian] (1990)
-
La couleur tombée du ciel?La couleur tombee du ciel[French] (1954)
- La couleur tombée du ciel [French] (1991) with Howard Phillips Lovecraft
-
La couleur tombée du ciel?La couleur tombee du ciel[French] (1996) with Howard P. Lovecraft
-
La couleur tombée du ciel?La couleur tombee du ciel[French] (2015) with Howard Phillips Lovecraft
- La couleur tombée du ciel [French] (2021) with Howard Phillips Lovecraft
- La couleur venue d'ailleurs [French] (2015)
- La dichiarazione di Randolph Carter [Italian] (1989)
- La extraña casa en la niebla [Spanish] (2004)
-
La fenêtre à pignon?La fenetre a pignon[French] (1978) with A. Derleth
- La fenêtre à pignon [French] (1992) with August Derleth
- La finestra della soffitta [Italian] (1980) with August Derleth
- La lampe d'Alhazred [French] (1958) with August Derleth
- La lampe d'Alhazred [French] (1978) with A. Derleth
- La lampe d'Alhazred [French] (1992) with August Derleth
- La llamada de Cthulhu [Spanish] (1980)
- La llamada de Cthulhu [Spanish] (2001) with Howard Phillips Lovecraft
- La llave de plata [Spanish] (2004)
- La maison abandonnée [French] (2021) with Howard Phillips Lovecraft
-
La maison de la sorcière?La maison de la sorciere[French] (1954)
- La maison de la sorcière [French] (1991) with Howard Phillips Lovecraft
- La maison de la sorcière [French] (1995) with Howard P. Lovecraft
- La maison de la sorcière [French] (2012)
- La maison de la sorcière [French] (2021) with Howard Phillips Lovecraft
- La maison maudite [French] (1961)
- La maison maudite [French] (1997) with Howard P. Lovecraft
- La maison maudite [French] (2016)
- La malédiction de Sarnath [French] (1969)
- La malédiction de Sarnath [French] (1992) with Howard Phillips Lovecraft
- La malédiction de Sarnath [French] (2018)
-
La malédiction de Yig?La malediction de Yig[French] (1984) with Zealia Bishop
- La malédiction de Yig [French] (2021) with Zealia Brown Bishop and Howard Phillips Lovecraft
- La malédiction qui s'abattit sur Sarnath [French] (2010)
- La malédiction qui s'abattit sur Sarnath [French] (2013)
- La malédiction qui s'abattit sur Sarnath [French] (2021) with Howard Phillips Lovecraft
- La maschera di Innsmouth [Italian] (1963) with Howard Phillips Lovecraft
- La maschera di Innsmouth [Italian] (1980)
- La maschera di Innsmouth [Italian] (1990)
-
La mort ailée?La mort ailee[French] (1975) with Hazel Heald
- La mort ailée [French] (2021) with Hazel Heald and Howard Phillips Lovecraft
- La morte dall'occhio di cristallo [Italian] (1981) with Howard Phillips Lovecraft
- La muerte del monstruo [Spanish] (2010) with Robert H. Barlow
- La musica di Eric Zann [Italian] (1990) with Howard Phillips Lovecraft
- La musica di Erich Zann [Italian] (1980)
- La musica di Erich Zann [Italian] (1989)
- La musica di Erich Zann [Italian] (1990) with Howard Phillips Lovecraft
- La musique d'Erich Zann [French] (1961)
- La musique d'Erich Zann [French] (1997) with Howard P. Lovecraft
- La musique d'Erich Zann [French] (2015)
- La musique d'Erich Zann [French] (2016)
- La musique d'Erich Zann [French] (2021) with Howard Phillips Lovecraft
- La música de Erich Zann [Spanish] (1980)
- La Nave Bianca [Italian] (1989)
- La nave misteriosa [Italian] (1989)
- La palude della luna [Italian] (1989)
- La paura in agguato [Italian] (1989)
- La petite bouteille de verre [French] (1991) with Howard Phillips Lovecraft
- La petite bouteille de verre [French] (2021) with Howard Phillips Lovecraft
-
La peur qui rôde?La peur qui rode[French] (1961)
-
La peur qui rôde?La peur qui rode[French] (1996) with Howard P. Lovecraft
- La peur qui rôde [French] (2015)
- La peur qui rôde [French] (2021) with Howard Phillips Lovecraft
- La poesia e gli dei [Italian] (1989) with Anna Helen Crofts
- La poésie et les dieux [French] (1969)
- La quête d'Iranon [French] (1969)
- La quête d'Iranon [French] (1992) with Howard Phillips Lovecraft
- La quête d'Iranon [French] (2010)
- La quête d'Iranon [French] (2018)
- La quête d'Iranon [French] (2021) with Howard Phillips Lovecraft
- La quête onirique de Kadath l'inconnue [French] (1996) with Howard P. Lovecraft
- La quête onirique de Kadath l'inconnue [French] (1997)
- La quête onirique de Kadath l'inconnue [French] (2010)
- La quête onirique de Kadath l'inconnue [French] (2021) with Howard Phillips Lovecraft
- La ricerca di Iranon [Italian] (1989)
- La ricerca di Iranon [Italian] (1998) with Howard Phillips Lovecraft
- La rovina di Sarnath [Italian] (1989)
- La rue [French] (1969)
- La rue [French] (2016) with Howard Phillips Lovecraft
- La rue [French] (2021) with Howard Phillips Lovecraft
- La scomparsa di Juan Romero [Italian] (1989)
- La sombra sobre Innsmouth [Spanish] (2004)
- La stella polare [Italian] (1989)
- La strada [Italian] (1989)
- La tomba [Italian] (1989)
- La tombe [French] (1969)
- La tombe [French] (2016)
- La tombe [French] (2021) with Howard Phillips Lovecraft
-
La tourbière hantée?La tourbiere hantee[French] (1961)
-
La tourbière hantée?La tourbiere hantee[French] (1996) with Howard P. Lovecraft
- La transition de Juan Romero [French] (1969)
- La transition de Juan Romero [French] (2021) with Howard Phillips Lovecraft
- La verità sul defunto Arthur Jermin e la sua famiglia [Italian] (1989)
- La verte prairie [French] (1975) with Elizabeth Berkeley
- La verte prairie [French] (2021) with Winifred V. Jackson and Howard Phillips Lovecraft
- La ville sans nom [French] (2016) with Howard Phillips Lovecraft
- La visione del caos [Italian] (1989) with Winifred Jackson
- Las ratas de las paredes [Spanish] (1963) with Howard Philips Lovecraft
- Las ratas de las paredes [Spanish] (1980)
- Le bateau blanc [French] (1969)
- Le bateau blanc [French] (1992) with Howard Phillips Lovecraft
- Le bateau blanc [French] (2010)
- Le bateau blanc [French] (2018)
- Le bateau blanc [French] (2021) with Howard Phillips Lovecraft
- Le bourreau électrique [French] (2021) with Adolphe de Castro and Howard Phillips Lovecraft
- Le cancer de la superstition [French] (1992) with Howard Phillips Lovecraft
- Le cauchemar d'Innsmouth [French] (1954)
- Le cauchemar d'Innsmouth [French] (1991) with Howard Phillips Lovecraft
- Le cauchemar d'Innsmouth [French] (1995) with Howard P. Lovecraft
- Le cauchemar d'Innsmouth [French] (2007)
- Le cauchemar d'Innsmouth [French] (2012)
- Le cauchemar d'Innsmouth [French] (2021) with Howard Phillips Lovecraft
- Le chaos rampant [French] (2021) with Winifred V. Jackson and Howard Phillips Lovecraft
- Le chien [French] (2016) with Howard Phillips Lovecraft
- Le clergyman maudit [French] (1969)
- Le combat qui marqua la fin du siècle [French] (2021) with Howard Phillips Lovecraft
- Le dernier examen [French] (1984) with Adolpho de Castro
- Le dernier test [French] (2021) with Adolphe de Castro and Howard Phillips Lovecraft
- Le descendant [French] (1969)
- Le descendant [French] (1991) with Howard Phillips Lovecraft
- Le descendant [French] (2021) with Howard Phillips Lovecraft
- Le défi d'outre-espace [French] (1993) with Robert E. Howard and Frank Belknap Long and Howard P. Lovecraft and A. Merritt and C. L. Moore
-
Le défi de l'au-delà?Le defi de l'au-dela[French] (1975) with Robert E. Howard and Frank Belknap Long, Jr. and Abraham Merritt and Catherine L. Moore
- Le défi de l'au-delà [French] (1984) with Robert E. Howard and Frank Belknap Long and Abraham Merritt and Catherine L. Moore
- Le festival [French] (1969)
- Le festival [French] (1991) with Howard Phillips Lovecraft
- Le festival [French] (2012)
- Le festival [French] (2021) with Howard Phillips Lovecraft
-
Le jour à Wentworth?Le jour a Wentworth[French] (1978) with A. Derleth
- Le jour à Wentworth [French] (1992) with August Derleth
-
Le jour à Wentworth?Le jour a Wentworth[French] (1997)
- Le journal d'Alonso Typer [French] (1975) with William Lumley
- Le journal d'Alonzo Typer [French] (2021) with Howard Phillips Lovecraft and William Lumley
- Le livre [French] (1969)
- Le livre [French] (2016) with Howard Phillips Lovecraft
- Le livre [French] (2016)
- Le livre [French] (2021) with Howard Phillips Lovecraft
- Le livre noir [French] (1991) with Martin S. Warnes
- Le mangeur de spectres [French] (1975) with C. M. Eddy, Jr.
- Le marais de la lune [French] (2021) with Howard Phillips Lovecraft
-
Le modèle de Pickman?Le modele de Pickman[French] (1961)
- Le modèle de Pickman [French] (1997) with Howard P. Lovecraft
- Le modèle de Pickman [French] (2016)
- Le modèle de Pickman [French] (2021) with Howard Phillips Lovecraft
- Le molosse [French] (1961)
- Le molosse [French] (1991) with Howard Phillips Lovecraft
- Le molosse [French] (1997) with Howard P. Lovecraft
- Le molosse [French] (2015)
- Le molosse [French] (2021) with Howard Phillips Lovecraft
- Le monstre invisible [French] (1975) with Sonia Greene
- Le monstre sur le seuil [French] (1956)
- Le monstre sur le seuil [French] (1991) with Howard Phillips Lovecraft
- Le monstre sur le seuil [French] (1995) with Howard P. Lovecraft
- Le monstre sur le seuil [French] (2012)
- Le monstre sur le seuil [French] (2015)
- Le monstre sur le seuil [French] (2021) with Howard Phillips Lovecraft
- Le mystère du cimetière ou La revanche d'un mort [French] (1991) with Howard Phillips Lovecraft
- Le mystère du cimetière; ou, La revanche d'un mort [French] (2021) with Howard Phillips Lovecraft
- Le nécrophile [French] (1975) with C. M. Eddy, Jr.
- Le peuple ancien [French] (1993) with Howard P. Lovecraft
- Le peuple très ancien [French] (2021) with Howard Phillips Lovecraft
- Le piège [French] (1993) with Howard P. Lovecraft and Henry S. Whitehead
- Le prêtre maudit [French] (2021) with Howard Phillips Lovecraft
- Le pêcheur du Falcon Point [French] (1992) with August Derleth
- Le survivant [French] (1978) with A. Derleth
- Le survivant [French] (1992) with August Derleth
- Le temple [French] (1969)
- Le temple [French] (2015)
- Le temple [French] (2016) with Howard Phillips Lovecraft
- Le temple [French] (2021) with Howard Phillips Lovecraft
- Le terrible vieillard [French] (2021) with Howard Phillips Lovecraft
- Le tertre [French] (1984) with Zealia Bishop
- Le tertre [French] (2021) with Zealia Brown Bishop and Howard Phillips Lovecraft
- Le trou des sorcières [French] (1992) with August Derleth
-
Le témoignage de Randolph Carter?Le temoignage de Randolph Carter[French] (1955) with H.-P. Lovecraft
- Le témoignage de Randolph Carter [French] (1992) with Howard Phillips Lovecraft
- Le témoignage de Randolph Carter [French] (2010)
- Le témoignage de Randolph Carter [French] (2018)
- Le témoignage de Randolph Carter [French] (2021) with Howard Phillips Lovecraft
- Le vaisseau mystérieux [French] (1991) with Howard Phillips Lovecraft
- Le Vaisseau mystérieux [French] (2021) with Howard Phillips Lovecraft
- Les adorants du fond des mers [French] (1964)
- Les autres dieux [French] (1969)
- Les autres dieux [French] (1992) with Howard Phillips Lovecraft
- Les autres dieux [French] (2010)
- Les autres dieux [French] (2018)
- Les autres dieux [French] (2021) with Howard Phillips Lovecraft
- Les boucles de Méduse [French] (2021) with Zealia Brown Bishop and Howard Phillips Lovecraft
- Les chats d'Ulthar [French] (1969)
- Les chats d'Ulthar [French] (1986)
- Les chats d'Ulthar [French] (1992) with Howard Phillips Lovecraft
- Les chats d'Ulthar [French] (1993) with Howard P. Lovecraft
- Les chats d'Ulthar [French] (2010)
- Les chats d'Ulthar [French] (2018)
- Les chats d'Ulthar [French] (2021) with Howard Phillips Lovecraft
- Les frères de la nuit [French] (1992) with August Derleth
- Les rats dans les murs [French] (1956)
- Les rats dans les murs [French] (1997) with Howard P. Lovecraft
- Les rats dans les murs [French] (2016)
- Les rats dans les murs [French] (2021) with Howard Phillips Lovecraft
-
Les rêves dans la maison de la sorcière?Les reves dans la maison de la sorciere[French] (1977)
- Les sortilèges d'Aplhar [French] (1993) with Howard P. Lovecraft and Duane W. Rimel
- Les veilleurs hors du temps [French] (1992) with August Derleth
- Life and Death (unpublished)
- Los adoradores del fondo del mar [Spanish] (1972) with Howard Phillips Lovecraft
- Los gatos de Ulthar [Spanish] (1982)
- Los sueños de la casa de la bruja [Spanish] (1981)
- Lui [French] (1969)
- Lui [French] (2018)
- Lui [French] (2021) with Howard Phillips Lovecraft
- Medusa's Coil (1930) with Zealia Bishop
- Medusa's Coil (1939) with Zealia B. Bishop
- Medusa's Coil (1939) with Z. B. Bishop
- Medusa's Coil (1939) with Zealia Bishop
- Medusa's Coil (2016) with Zealia Bishop and Howard Phillips Lovecraft
- Monster of Terror (1927)
-
Monstret utifrån?Monstret utifraan[Swedish] (1974)
- Muzica lui Erich Zann [Romanian] (1986)
- Más allá de la pared del sueño [Spanish] (1966)
-
Mörkrets fänge?Moerkrets faenge[Swedish] (1988)
- Na catacumba [Portuguese] (2021)
- Nella cripta [Italian] (1980)
- Nella cripta [Italian] (1988) with Howard Phillips Lovecraft
- Night Ocean [French] (1993) with R. H. Barlow and Howard P. Lovecraft
- Nimetön kaupunki [Finnish] (1991)
- Nyarlathotep (1920)
- Nyarlathotep [French] (1969)
- Nyarlathotep [German] (1973)
- Nyarlathotep [Italian] (1980)
- Nyarlathotep [Italian] (1989)
- Nyarlathotep [German] (2010) with Howard Phillips Lovecraft
- Nyarlathotep [German] (2011)
- Nyarlathotep (2014) with Howard Phillips Lovecraft
- Nyarlathotep [French] (2015)
- Nyarlathotep [Romanian] (2016)
- Nyarlathotep [German] (2016)
- Nyarlathotep [Portuguese] (2021)
- Nyarlathotep [French] (2021) with Howard Phillips Lovecraft
- Nyarlathothep [French] (1991) with Howard Phillips Lovecraft
- Nyarlathothep [French] (1993) with Howard P. Lovecraft
- O alquimista [Portuguese] (1991)
- O alquimista [Portuguese] (2007)
- O apelo de Cthulhu [Portuguese] (1959)
- O avantesma do escuro [Portuguese] (2005)
- O brejo lunar [Portuguese] (2016)
- O Chamado de Cthulhu [Portuguese] (1983)
- O chamado de Cthulhu [Portuguese] (2013)
- O chamado de Cthulhu [Portuguese] (2021)
- O clérigo diabólico [Portuguese] (1991)
- O clérigo diabólico [Portuguese] (2007)
- O clérigo maligno [Portuguese] (2021)
- O cão [Portuguese] (2016)
- O depoimento de Randolph Carter [Portuguese] (1973)
- O depoimento de Randolph Carter [Portuguese] (2007)
- O depoimento de Randolph Carter [Portuguese] (2013)
- O depoimento de Randolph Carter [Portuguese] (2021)
- O descendente [Portuguese] (1991)
- O descendente [Portuguese] (2007)
- O descendente [Portuguese] (2013)
- O descendente [Portuguese] (2021)
- O despertar de Cthulhu [Portuguese] (2005)
- O festival [Portuguese] (1991)
- O festival [Portuguese] (2007)
- O festival [Portuguese] (2013)
- O festival [Portuguese] (2021)
- O forasteiro [Portuguese] (2013)
- O forasteiro [Portuguese] (2016)
- O galgo [Portuguese] (2008)
- O habitante das trevas [Portuguese] (2013)
- O homem de pedra [Portuguese] (2020) with Hazel Heald
- O horror de Dunwich [Portuguese] (2013)
- O horror em Red Hook [Portuguese] (1991)
- O horror em Red Hook [Portuguese] (2007)
- O horror em Red Hook [Portuguese] (2021)
- O horror no cemitério [Portuguese] (2020)
- O Indizível [Portuguese] (1977)
- O inominável [Portuguese] (2008)
- O inominável [Portuguese] (2013)
- O inominável [Portuguese] (2016)
- O Inominável [Portuguese] (2021)
- O intruso [Portuguese] (2004)
- O intruso [Portuguese] (2008)
- O Intruso [Portuguese] (2021)
- O livro [Portuguese] (1991)
- O livro [Portuguese] (2007)
- O livro [Portuguese] (2021)
- O medo do oculto [Portuguese] (2007)
- O medo à espreita [Portuguese] (2016)
- O medo à espreita [Portuguese] (2021)
- O modelo de Pickman [Portuguese] (2004)
- O modelo de Pickman [Portuguese] (2009)
- O modelo de Pickman [Portuguese] (2021)
- O modelo de Pickman [Portuguese] (2023)
- O navio branco [Portuguese] (2016)
- O navio branco [Portuguese] (2021)
- O oceano noturno [Portuguese] (2020) with R. H. Barlow
- O povo antiquíssimo [Portuguese] (2021)
- O prado verde [Portuguese] (2020) with Winifred V. Jackson
- O pântano da lua [Portuguese] (2009)
- O pântano lunar [Portuguese] (2021)
- O que sussurra nas trevas [Portuguese] (2005)
- O sabujo [Portuguese] (2013)
- O sabujo [Portuguese] (2021)
- O templo [Portuguese] (1965)
- O templo [Portuguese] (2007)
- O templo [Portuguese] (2016)
- O templo [Portuguese] (2021)
- O velho terrível [Portuguese] (2008)
- O velho terrível [Portuguese] (2021)
- O visitante das trevas [Portuguese] (2021)
- O último teste [Portuguese] (2020) with Adolphe de Castro
- Old Bugs (1959)
- Old bugs [French] (1992) with Howard Phillips Lovecraft
- Old Bugs [German] (2005)
- Old Bugs [Portuguese] (2021)
- Old Bugs [French] (2021) with Howard Phillips Lovecraft
- Old Bugs: An Extemporaneous Sob Story (1995) with Marcus Lollius
- Oltre il muro del sonno [Italian] (1989)
- Os gatos de Ulthar [Portuguese] (2008)
- Os gatos de Ulthar [Portuguese] (2021)
- Os outros deuses [Portuguese] (2021)
- Os ratos nas paredes [Portuguese] (2004)
- Os sonhos na casa da bruxa [Portuguese] (2007)
- Os sonhos na casa da bruxa [Portuguese] (2021)
- Os Sonhos na Casa das Bruxas [Portuguese] (1983)
- Out of the Aeon (2012) with Hazel Heald
- Out of the Aeons (1989) with Hazel Heald
- Out of the Aeons (2012) with Hazel Heald
- Out of the Aeons (2017)
- Out of the Eons (1935) with Hazel Heald
- Out of the Eons (1935) with Hazel Heald
-
Par-delà le mur du sommeil?Par-dela le mur du sommeil[French] (1956)
-
Par-delà le mur du sommeil?Par-dela le mur du sommeil[French] (1996) with Howard P. Lovecraft
- Par-delà le mur du sommeil [French] (2015)
- Par-delà le mur du sommeil [French] (2016) with Howard Phillips Lovecraft
- Par-delà le mur du sommeil [French] (2021) with Howard Phillips Lovecraft
- Para lá das fronteiras do sono [Portuguese] (2008)
- Peabody-arven [Norwegian (Bokmal)] (1976)
- Pickman's Model (1927)
- Pickman's Model (2019) with Howard Phillips Lovecraft
- Pickman's modellen [Dutch] (1982)
- Pickmanin malli [Finnish] (1988)
- Pickmanov model [Croatian] (1999)
- Pickmans Modell [German] (1968)
- Pickmans Modell [German] (2005) with Howard Phillips Lovecraft
- Pickmans Modell [German] (2005)
- Pickmans Modell [German] (2011)
- Pickmans Modell [German] (2021)
- Poesia e os deuses [Portuguese] (1991)
- Poesia e os deuses [Portuguese] (2007) with Anna Helen Crofts
- Poetry and the Gods (1920) with Anna Helen Crofts
- Poetry and the Gods (1920) with Anna Helen Crofts and Henry Paget-Lowe
- Poetry and the Gods (1959)
- Poetry and the Gods (2017) with Anna Helen Crofts
- Polaris (1920)
- Polaris [French] (1969)
- Polaris [German] (1982)
- Polaris [French] (1992) with Howard Phillips Lovecraft
- Polaris [German] (2005)
- Polaris [German] (2006) with Howard Phillips Lovecraft
- Polaris [French] (2010)
- Polaris [German] (2013)
- Polaris [French] (2018)
- Polaris (2019) with Howard Phillips Lovecraft
- Polaris [Portuguese] (2021)
- Polaris [French] (2021) with Howard Phillips Lovecraft
- Polaris [German] (2021)
- Prisonnier des pharaons [French] (1969)
- Prisonnier des pharaons [French] (2013)
- Prisonnier des pharaons [French] (2021) with Howard Phillips Lovecraft
- Quatre heures [French] (1975) with Sonia Greene
- Quelques souvenirs sur le docteur Samuel Johnson [French] (2021) with Howard Phillips Lovecraft
- Quelques souvenirs sur le Dr Johnson [French] (1993) with Howard P. Lovecraft
- Quelques souvenirs sur le Dr. Johnson [French] (1992) with Howard Phillips Lovecraft
- Randolph Carters Aussage [German] (2017)
- Ratos nas paredes [Portuguese] (2021)
- Ratten [Dutch] (1959)
- Re-Animator [German] (2019)
- Re-Animator: Tales of Herbert West (1991)
- Schaduwen boven Innsmouth [Dutch] (1976)
-
Schatten über Innsmouth?Schatten ueber Innsmouth[German] (1971)
-
Skräcken i brunnen?Skraecken i brunnen[Swedish] (1976)
- Skräcken vid bron [Swedish] (1975) with August Derleth
- Skuggan ur tiden [Swedish] (1988)
-
Skuggan över Innsmouth?Skuggan oever Innsmouth[Swedish] (1988)
- Sob as pirâmides [Portuguese] (2008)
- Sob as pirâmides [Portuguese] (2021)
- Sombras Perdidas no Tempo [Portuguese] (1983)
- Sonhos na casa da Bruxa [Portuguese] (2013)
- Sourd, muet et aveugle [French] (1975) with C. M. Eddy, Jr.
- Stadt ohne Namen [German] (1973)
- Stadt ohne Namen [German] (2007) with Howard Phillips Lovecraft
- Stadt ohne Namen [German] (2011)
- Sterbende Universen [German] (2003) with Robert H. Barlow
- Sterbende Universen [German] (2020)
- Storia del Necronomicon [Italian] (1990)
- Story outline for "At the Mountain of Madness" (2015)
-
Străinul?Strainul[Romanian] (1984) with Howard Phillips Lovecraft
-
Surgi du fond des siècles?Surgi du fond des siecles[French] (1975) with Hazel Heald
- Surgi du fond des âges [French] (2021) with Hazel Heald and Howard Phillips Lovecraft
- Swallowed! (2006) with Stephen M. Wilson
- Swallowed! (2010) with Stephen M. Wilson
- Sweet Ermengarde (1943)
- Sweet Ermengarde or, The Heart of a Country Girl (2017)
- Sweet Ermengarde; or, The Heart of a Country Girl (1995) with Percy Simple
- Sweet Ermengarde; or, The Heart of a Country Girl (2018)
-
Sărbătoarea?Sarbatoarea[Romanian] (2016)
- Taub, stumm und blind [German] (2017) with C. M. Eddy junior
- Taub, stumm und blind [German] (2020)
- Temppeli [Finnish] (1988)
- Teufels-Weihnacht [German] (1975)
- The Alchemist (1916)
- The Alchemist (1953) with Howard Phillips Lovecraft
- The Ancestor (1957) with August Derleth
- The Automatic Electric Executioner (2021) with Adolphe de Castro
- The Battle That Ended a Century: (MS. Found in a Time Machine) (1949)
- The Battle That Ended a Century: (MS. Found in a Time Machine) (1995) with R. H. Barlow
- The Battle That Ended the Century (1934) with R. H. Barlow
- The Battle That Ended the Century (1944) with Robert H. Barlow
- The Battle That Ended the Century (2017) with Robert H. Barlow
- The Beast in the Cave (1918)
- The Beast in the Cave (1918) with Howard P. Lovecraft
- The Bell in the Tower (1989) with Lin Carter
- The Black Tome of Alsophocus (1980) with Martin S. Warnes
- The Book (1938)
- The Call of Cthulhu (1928)
- The Call of Cthulhu (1928) with Howard Phillips Lovecraft
- The Call of Cthulhu (1994) with John Coulthart
- The Call of Cthulhu (excerpt) (1991)
- The Cancer of Superstition (1966) with C. M. Eddy, Jr.
- The Cats of Ulthar (1920)
- The Cats of Ulthar (1920) with Howard Phillips Lovecraft
- The Challenge from Beyond (1935) with Robert E. Howard and Frank Belknap Long and A. Merritt and C. L. Moore
- The Challenge from Beyond (1935)
- The Challenge from Beyond (1935) with Robert E. Howard and Frank Belknap Long, Jr. and A. Merritt and C. L. Moore
- The Challenge from Beyond (2015) with Robert E. Howard
- The Color Out of Space (1945)
- The Colour Out of Space (1927)
- The Colour Out of Space (1947) with Howard Phillips Lovecraft
- The Crawling Chaos (1921) with Winifred V. Jackson
- The Crawling Chaos (1921) with Elizabeth Berkeley
- The Crawling Chaos (1921) with Elizabeth Neville Berkeley and Lewis Theobald, Jr.
- The Crawling Chaos (1921)
- The Crawling Chaos (1921) with Elizabeth Berkeley and Lewis Theobald, Jr.
- The Crawling Chaos (1921) with Elizabeth Neville Berkeley
- The Crawling Chaos (1921) with Winifred V. Jackson
- The Crawling Chaos (1939) with W. V. Jackson
- The Curse of Yig (1929) with Zealia Brown Reed
- The Curse of Yig (1929) with Zealia Bishop
- The Curse of Yig (1929) with Zealia Bishop
- The Curse of Yig (1939) with Z. B. Bishop
- The Curse of Yig (1943) with Zealia Brown-Reed
- The Curse of Yig (1953) with Zealia B. Bishop
- The Curse of Yig (1959) with Zealia Brown Bishop
- The Curse of Yig (1985) with Zealia Brown Reed Bishop
- The Curse of Yig (2017)
- The Dark Brotherhood (1966) with August Derleth
- The Dark Brotherhood (1966) with August W. Derleth
- The Descendant (1926)
- The Diary of Alonzo Typer (1938) with William Lumley
- The Diary of Alonzo Typer (1938) with William Lumley
- The Disinterment (1935) with Duane W. Rimel
- The Disinterment (1935) with Duane W. Rimel
- The Disinterment (2014) with D. W. Rimel
- The Doom That Came to Sarnath (1920)
- The Doom That Came to Sarnath (2019) with Howard Phillips Lovecraft
- The Dream Quest of Unknown Kadath (1943)
- The Dream-Quest of Unknown Kadath (1943)
- The Dream-Quest of Unknown Kadath (2019) with Howard Phillips Lovecraft
- The Dreams in the Witch House (1933)
- The Dreams in the Witch House (2014) with Howard Phillips Lovecraft
- The Dreams in the Witch-House (1933)
- The Dunwich Horror (1929)
- The Dunwich Horror (2014) with Howard Phillips Lovecraft
- The Dunwich Horror (excerpt) (1999)
- The Electric Executioner (1930) with Adolphe de Castro
- The Electric Executioner (1930) with Adolphe de Castro
- The Evil Clergyman (1939)
- The Festival (1925)
- The Festival (2014) with Howard Phillips Lovecraft
- The Fisherman of Falcon Point (1959) with August Derleth
- The Fragments at the Threshold (1982)
- The Gable Window (1957) with August Derleth
- The Ghost-Eater (1924) with C. M. Eddy, Jr.
- The Ghost-Eater (1924) with C. M. Eddy
- The Ghost-Eater (1924) with C. M. Eddy, Jr.
- The Green Meadow (1918) with Winifred V. Jackson
- The Green Meadow (1918) with Elizabeth Berkeley
- The Green Meadow (1918) with Elizabeth Neville Berkeley and Lewis Theobald, Jr.
- The Green Meadow (1918) with Elizabeth Neville Berkeley
- The Green Meadow (1918) with Winifred V. Jackson
- The Haunted House (unpublished)
- The Haunter of the Dark (1936)
- The Haunter of the Dark (2014) with Howard Phillips Lovecraft
- The History of the Necronomicon (2017)
- The Hoard of the Wizard-Beast (1933) with R. H. Barlow
- The Hoard of the Wizard-Beast (1933) with Robert H. Barlow
- The Hoard of the Wizard-Beast (facsimile reproduction of the original manuscript) (1933) with R. H. Barlow
- The Horror at Martin's Beach (1923) with Sonia H. Greene
- The Horror at Martin's Beach (1923) with Sonia H. Greene
- The Horror at Martin's Beach (2009) with Sonia Greene
- The Horror at Martins Beach (2017) with Sonia Haft Greene
- The Horror at Red Hook (1927)
- The Horror at Red Hook (2018)
- The Horror at Red Hook (2019) with Howard Phillips Lovecraft
- The Horror at Redhook (2009)
- The Horror from the Middle Span (1967) with August Derleth
- The Horror in the Burying Ground (1933) with Hazel Heald
- The Horror in the Burying-Ground (1933) with Hazel Heald
- The Horror in the Burying-Ground (1937) with Hazel Heald
- The Horror in the Museum (1933) with Hazel Heald
- The Horror in the Museum (1933) with Hazel Heald
- The Horror in the Museum (2017)
- The Hound (1924)
- The Hound (2014) with Howard Phillips Lovecraft
- The Invisible Monster (1923) with Sonia Greene
- The Invisible Monster (1923) with Sonia Greene
- The Invisible Monster (1923) with Sonia H. Greene
- The Lamp of Alhazred (1957) with August Derleth
- The Last Test (1928) with Adolphe de Castro
- The Last Test (1928) with Adolphe de Castro
- The Little Glass Bottle (1959)
- The Loved Dead (1924) with C. M. Eddy, Jr.
- The Loved Dead (1924) with C. M. Eddy, Jr.
- The Loved Dead (1976) with C. M. Eddy
- The Loved Dead [2] (1924) with C. M. Eddy, Jr.
- The Lurking Fear (1928)
- The Lurking Fear (2019) with Howard Phillips Lovecraft
- The Man of Stone (1932) with Hazel Heald
- The Man of Stone (1932) with Hazel Heald
- The Man of Stone (2017)
- The Messenger (excerpt) (1991)
- The Moon Bog (1970)
- The Moon-Bog (1926)
- The Mound (1940) with Zealia Bishop
- The Mound (1940) with Z. B. Bishop
- The Mound (1943) with Zealia Brown-Reed
- The Mound (1953) with Zealia B. Bishop
- The Mound (1970) with Zealia Bishop
- The Mound (2017)
- The Mound (2018) with Zelia Bishop
- The Murky Glass (1957) with August Derleth
- The Music of Erich Zann (1922)
- The Music of Erich Zann (2008) [graphic format] with Richard Corben
- The Music of Erich Zann (2019) with Howard Phillips Lovecraft
- The Mysterious Ship (1959)
- The Mysterious Ship (1995) with Howard Phillips Lovecraft
- The Mysterious Ship (long version) (2008)
- The Mysterious Ship (short version) (2008)
- The Mystery of Murdon Grange (unpublished)
- The Mystery of the Grave-Yard (1984)
- The Mystery of the Grave-Yard, or "A Dead Man's Revenge": A Detective Story (1959)
- The Nameless City (1921)
- The Nameless City (2014) with Howard Phillips Lovecraft
- The Night Ocean (1936) with R. H. Barlow
- The Night Ocean (1980) with Robert H. Barlow
- The Night Ocean (1982)
- The Night Ocean (1989) with R. H. Barlow
- The Night Ocean (1994) with Robert H. Barlow
- The Noble Eavesdropper (unpublished)
- The Other Gods (1933)
- The Other Gods (2019) with Howard Phillips Lovecraft
- The Outsider (1926)
- The Outsider (2019) with Howard Phillips Lovecraft
- The Outsider (excerpt) (2014)
- The Peabody Heritage (1957) with August Derleth
- The Picture (unpublished)
- The Picture in the House (1919)
- The Picture in the House (2014) with Howard Phillips Lovecraft
- The Quest of Iranon (1935)
- The Quest of Iranon (2019) with Howard Phillips Lovecraft
- The Rats in the Wall (1924)
- The Rats in the Walls (1924)
- The Rats in the Walls (1956)
- The Rats in the Walls (2019) with Howard Phillips Lovecraft
- The Rats in the Walls (excerpt) (2000)
- The Reanimator (1994)
- The Secret Cave (1984)
- The Secret Cave, or John Lees Adventure (1959)
- The Secret of the Grave (unpublished)
- The Shadow in the Attic (1964) with August Derleth
- The Shadow Out of Space (1957) with August Derleth
- The Shadow Out of Space (1957) with August W. Derleth
- The Shadow Out of Space (1957) with August W. Derleth
- The Shadow Out of Time (1936)
- The Shadow Out of Time (2014) with Howard Phillips Lovecraft
- The Shadow Over Innsmouth (1936)
- The Shadow Over Innsmouth (2014) with Howard Phillips Lovecraft
- The Shadow Over Innsmouth (excerpt) (1994)
- The Shadow Over Innsmouth (First Draught) (1944)
- The Shunned House (1928)
- The Shunned House (2019) with Howard Phillips Lovecraft
- The Shuttered Room (1959) with August Derleth
- The Shuttered Room (1981)
- The Shuttered Room (1995) with August W. Derleth
- The Shuttered Room (excerpt) (1964) with August Derleth
- The Silver Key (1929)
- The Silver Key (2014) with Howard Phillips Lovecraft
- The Silver Key (excerpt) (1929)
- The Slaying of the Monster (1933) with R. H. Barlow
- The Slaying of the Monster (1933) with Robert H. Barlow
- The Slaying of the Monster (facsimile reproduction of the original manuscript) (1933) with R. H. Barlow
- The Snouted Thing (1979) with J. Vernon Shea
- The Sorcery of Aphlar (1934) with Duane W. Rimel
- The Sorcery of Aphlar (1934) with Duane W. Rimel
- The Statement of Randolph Carter (1920)
- The Statement of Randolph Carter (1920) with Howard Phillips Lovecraft
- The Strange High House in the Mist (1931)
- The Strange High House in the Mist (2019) with Howard Phillips Lovecraft
- The Street (1920)
- The Street (1953) with Howard Phillips Lovecraft
- The Survivor (1954) with August Derleth
- The Temple (1925)
- The Temple (2019) with Howard Phillips Lovecraft
- The Terrible Old Man (1921)
- The Terrible Old Man (2018)
- The Terrible Old Man (2019) with Howard Phillips Lovecraft
- The Thing in the Moonlight (1941)
- The Thing in the Moonlight (1969) with Brian Lumley
- The Thing on the Door-Step (1937)
- The Thing on the Doorstep (1937)
- The Thing on the Doorstep (2014) with Howard Phillips Lovecraft
- The Tomb (1922)
- The Tomb (1922) with Howard Phillips Lovecraft
- The Transition of Juan Romero (1919)
- The Transition of Juan Romero (2019) with Howard Phillips Lovecraft
- The Trap (1932) with Henry S. Whitehead
- The Trap (1932) with Henry S. Whitehead
- The Trap (2012)
- The Trap (2017) with Henry Whitehead
- The Tree (1921)
- The Tree on the Hill (1940) with Duane W. Rimel
- The Tree on the Hill (1940) with Duane Rimel
- The Tree on the Hill (2017)
- The Two Black Bottles (2018) with Wilfred B. Talman
- The Unnamable (1925)
- The Unnamable (2014) with Howard Phillips Lovecraft
- The Vermont Horror (1999)
- The Very Old Folk (1927)
- The Watchers Out of Time (1974) with August Derleth
- The Weird Shadow Over Innsmouth (1944)
- The Weird Shadow Over Innsmouth (1999) with John S. Glasby
- The Whisperer in Darkness (1931)
- The Whisperer in Darkness (1931) with Howard Phillips Lovecraft
- The Whisperer in the Darkness (2020)
- The White Ape (1921)
- The White Ship (1919)
- The Wicked Clergyman (1939)
- The Young Folks' Ulysses (1897)
- The Young Folks' Ulysses (1976) with Howard Lovecraft
- Through the Gates of the Silver Key (1934) with E. Hoffmann Price
- Through the Gates of the Silver Key (1934) with Hoffman Price
- Through the Gates of the Silver Key (1966)
- Till A' the Seas (2012) with R. H. Barlow
- Till A' the Seas (2017) with Robert H. Barlow
- Trapaceando a morte [Portuguese] (2020)
- Träume im Hexenhaus [German] (1969)
-
Träume im Hexenhaus?Traeume im Hexenhaus[German] (1969)
- Träume im Hexenhaus [German] (2006) with Howard Phillips Lovecraft
- Träume im Hexenhaus [German] (2011)
- Two Black Bottles (1927) with Wilfred Blanch Talman
- Two Black Bottles (1927) with Wilfred Blanch Talman
- Two Black Bottles (1944) with Wilfred B. Talman
- Two Black Bottles (2020)
- Two Black Bottles (2023) with Wilfred B. Talman
- Ténèbre sur Innsmouth [French] (2020)
- Tötet das Ungeheuer! [German] (2003) with Robert H. Barlow
- Tötet das Ungeheuer! [German] (2020)
- Ulkopuolinen [Finnish] (1988)
- Um Frágil Ancião [Portuguese] (1983)
-
Um sussurro na escuridão?Um sussurro na escuridao[Portuguese] (2013)
- Um Sussurro nas Trevas [Portuguese] (1983)
- Uma reminiscência do dr. Samuel Johnson [Portuguese] (2021)
- Un air glacial [French] (2018)
- Un'illustrazione e una vecchia casa [Italian] (1989)
- Under the Pyramids (1987) with Harry Houdini
- Under the Pyramids (2001)
- Under the Pyramids (2017) with Harry Houdini
- Under the Pyramids (2019) with Howard Phillips Lovecraft
- Unen seinämän takana [Finnish] (1988)
- Unter den Pyramiden [German] (2021)
- Untitled (Drabblecast #366) [1] (2015) with Baltimore Canary and Micah Joel and John P. Murphy and Hugh J. O'Donnell and Norm Sherman and Patrick Waickman and Erica Weems and Caroline M. Yoachim
- Untitled (Drabblecast #366) [1] (2015) with Baltimore Canary and Micah Joel and John P. Murphy and Hugh O'Donnell and Norm Sherman and Patrick Waickman and Erica Weems and Caroline M. Yoachim
- Untitled (Drabblecast #367) [1] (2015) with a baby duck and Dave Bennett and Josh Fisher and Michael Grey and Chris Lester and Kendall Marchman and Patricia Matson and Scott Merrill and Norm Sherman and Alexis Slone and Ferrett Steinmetz and King Tam and Richard Ware and Caroline M. Yoachim and Kevin Young
- Untitled (Drabblecast #367) [1] (2015) with a baby duck and Dave Bennett and Josh Fisher and Michael Grey and Chris Lester and Kendall Marchman and Patricia Matson and Scott Merrill and Norm Sherman and Alexis Slone and Ferrett Steinmetz and King Tam and Richard Ware and Caroline Yoachim and Kevin Young
- Untitled (Drabblecast #368) [1] (2015) with bnprime and Adam Caldwell and Charles Coleman Finlay and Michael Grey and Jen and Micah Joel and Manuel Labor and LawrenceWS and Jack Nutting and Robin Oree and Norm Sherman and Caroline M. Yoachim
- Untitled (Drabblecast #368) [1] (2015) with bnprime and Adam Caldwell and C. C. Finlay and Michael Grey and Jen and Micah Joel and Manuel Labor and LawrenceWS and Jack Nutting and Robin Oree and Norm Sherman and Caroline M. Yoachim
- Untitled (Drabblecast #369) [1] (2015) with Anatoly Belilovsky and Dave Bennett and Melissa Brinks and J. D. Buffington and Paul Freelend and Shane Halbach and Micah Joel and Brigitte McKenna and MegaCartridge and John P. Murphy and Chris Pragman and Norm Sherman and Alexis Slone and Solipsist and TheNosalator and Valentalae and Patrick Waickman and Caroline M. Yoachim
- Untitled (Drabblecast #369) [1] (2015) with Anatoly Belilovsky and Dave Bennett and Melissa Brinks and J. D. Buffington and Paul Freelend and Shane Halbach and Micah Joel and Brigitte McKenna and MegaCartridge and John P. Murphy and Chris Pragman and Norm Sherman and Alexis Slone and Solipsist and TheNosalator and Valentalae and Patrick Waickman and Caroline Yoachim
- Untitled (Drabblecast #414) (2019) with Stocky Balboa and BigDumbYak and James Carvin and James Cheney and The Nowhere Dispatch and Shoshana Frerking and The Goosecast and Peyton Hodges and Micah Joel and Jason K. Jones and Tom Megill and John P. Murphy and Chris Pragman and Darkness Prevails and James Pring and Norm Sherman and Speckles and bean stan and Joel Zelman
- Untitled (Drabblecast #414) (2019) with Stocky Balboa and BigDumbYak and James Carvin and James Cheney and The Nowhere Dispatch and Shoshana Frerking and The Goosecast and Peyton Hodges and Micah Joel and Jason Jones and Tom Megill and John Murphy and Chris Pragman and Darkness Prevails and James Pring and Norm Sherman and Speckles and bean stan and Joel Zelman
- Untitled (Drabblecast #415) (2019) with Scott Bomkamp and Shoshana Frerking and Michael Grey and Hannah Hulbert and Minty and Kevin Morgan and Wendy Nikel and Richard Payne and Sarah Pinsker and Chris Pragman and Norm Sherman and Rudy Toledo and Daniel Weber and Kevin Young
- Untitled (Drabblecast #415) (2019) with Scott Bomkamp and Kevin in Cincinnati and Shoshana Frerking and Michael Grey and Hannah Hulbert and Minty and Kevin Morgan and Wendy Nikel and Richard Payne and Sarah Pinsker and Chris Pragman and Norm Sherman and Rudy Toledo and Daniel Weber
- Vainooja pimeydestä [Finnish] (1991)
-
Varelsen på trs̈keln?Varelsen pa trskeln[Swedish] (1988)
- Veneticul [Romanian] (2016)
- Vento Frio [Portuguese] (1983)
- Verworfene Fassung von "Der Schatten über Innsmouth" [German] (2005) with Howard Phillips Lovecraft
- Vier Uhr [German] (2017) with Sonia Greene
- Vier Uhr [German] (2020)
- Viileää ilmaa [Finnish] (1988)
- Vindo dos Aeons [Portuguese] (2018)
- Visionen im Nebel [German] (1968)
-
Viskaren i mörkret?Viskaren i morkret[Swedish] (1988)
- Vom Jenseits [German] (1982)
- Vom Jenseits [German] (2005)
- Vom Wolf, der Gespenster fraß [German] (2017) with C. M. Eddy junior
- Vom Wolf, der Gespenster fraß [German] (2020)
- Von drüben [German] (2021)
- Väri avaruudesta [Finnish] (1991)
- Was über den verstorbenen Arthur Jermyn und seine Familie bekannt ist [German] (2021)
- Wentworth's Day (1957) with August Derleth
- White Ape (1973)
- Winged Death (1934) with Hazel Heald
- Winged Death (1934) with Hazel Heald
- Winged Death (2012)
- Witches' Hollow (1962) with August Derleth
- Witches' Hollow (1962)
- Zli sveštenik [Serbian] (1990) with H. P. Lavkraft
- Zwei schwarze Flaschen [German] (1984) with Wilfred Blanch Talman
- Zwei schwarze Flaschen [German] (2017) with Wilfred Blanch Talman
- Zwei schwarze Flaschen [German] (2020)
-
À la recherche de Kadath?A la recherche de Kadath[French] (1955) with H.-P. Lovecraft
- À la recherche de Kadath [French] (1992) with Howard Phillips Lovecraft
- À la recherche de Kadath [French] (2018)
-
À travers les portes de la clé d'argent?A travers les portes de la cle d'argent[French] (1955) with H.-P. Lovecraft
- À travers les portes de la clé d'argent [French] (1992) with Howard Phillips Lovecraft
- À travers les portes de la clé d'argent [French] (2010)
- À travers les portes de la clé d'argent [French] (2018)
- À travers les portes de la clé d'argent [French] (2021) with Howard Phillips Lovecraft
- Él [Spanish] (2004)
-
În căutarea cetății Kadath?In cautarea cetatii Kadath[Romanian] (1995)
-
Čudna visoka kuća u izmaglici?Cudna visoka kuca u izmaglici[Serbian] (1989) with H. F. Lavkraft
-
Δαγών?Thayon[Greek] (2016)
-
Το Κάλεσμα του Κθούλου?To Kalesma toe Kthoύloe[Greek] (2016)
To Kalesma toe Kthouloe -
Възмездието на Сарнат?Vazmezdieto na Sarnat[Bulgarian] (2022) withХауърд Лъвкрафт?Hauard Lavkraft
-
Гипнос?Gipnos[Russian] (1992) withХ. Ф. Лавкрафт?Kh. F. Lavkraft
-
Зад стената на съня?Zad stenata na sanya[Bulgarian] (2022) withХауърд Лъвкрафт?Hauard Lavkraft
-
Картината в онази къща?Kartinata v onazi kashta[Bulgarian] (2022) withХауърд Лъвкрафт?Hauard Lavkraft
-
Кошмарът в Дънуич?Koshmarat v Danuich[Bulgarian] (2004) withХауърд Лъвкрафт?Hauard Lavkraft
-
Кошмары Рэд Хука?Koshmary Red Khuka[Russian] (1993) withГовард Филлипс Лавкрафт?Govard Fillips Lavkraft
Howard Phillips Lovecraft -
Окно в башне?Okno v bashne[Russian] (1992) withГовард Ловекрафт?Govard Lovekraft
Howard Lovecraft -
Он?On[Russian] (1992) withГовард Ловекрафт?Govard Lovekraft
Howard Lovecraft -
Он?On[Russian] (1993) withГовард Филлипс Лавкрафт?Govard Fillips Lavkraft
Howard Phillips Lovecraft -
Погребенный вместе с фараонами?Pogrebennyy vmeste s faraonami[Russian] (1993) withГарри Гудини?Garri Gudiniand
Harry HoudiniГовард Филлипс Лавкрафт?Govard Fillips Lavkraft
Howard Phillips Lovecraft -
Празднество?Prazdnestvo[Russian] (1993) withГовард Филлипс Лавкрафт?Govard Fillips Lavkraft
Howard Phillips Lovecraft -
Селефайс?Selefays[Bulgarian] (2022) withХауърд Лъвкрафт?Hauard Lavkraft
-
Склеп?Sklep[Russian] (1993) withГовард Филлипс Лавкрафт?Govard Fillips Lavkraft
Howard Phillips Lovecraft -
Ужас в Данвиче?Uzhas v Danviche[Russian] (1992) withГовард Ловекрафт?Govard Lovekraft
Howard Lovecraft -
Чудовище на пороге?Chudovishche na poroge[Russian] (1992) withГовард Ловекрафт?Govard Lovekraft
Howard Lovecraft -
永劫より?Eigō Yori[Japanese] (1972) with Hazel Heald
-
永劫より?Eigō Yori[Japanese] (1972) withヘイゼル・ヒールド?Heizeru HīrudoandH. P. ラヴクラフト?H. P. Ravukurafuto
-
闇に這う者?Yami ni Hau Mono[Japanese] (1972) withH. P. ラヴクラフト?H. P. Ravukurafuto
- "The Poetical Punch" Pushed from His Pedestal (1984)
- 1914 (1915)
- ['Tis a sprig of green shamrock...] (2001)
- [Anthem of the Kappa Alpha Tau] (2001)
- [Last of an elder race...] (2001)
- [Little Sam Perkins] (2001)
- [Metrical Example] (2001)
- [On "Unda; or, The Bride of the Sea"] (2001)
- [On a Politician] (2001)
- [On a Room for Rent] (2001)
- [On a Scene in Rural Rhode Island] (2001)
- [On Ambrose Bierce] (2001)
- [On Cheating the Post Office] (2001)
- [On J. F. Roy Erford] (2001)
- [On Kelso the Poet] (2001)
- [On Marblehead] (2001)
- [On Newport, Rhode Island] (2001)
- [On Old Grimes by Albert Gorton Greene] (2001)
- [On Phillips Gamwell] (1916)
- [On Prohibition] (2001)
- [On Rheinhart Kleiner Being Hit by an Automobile] (2001)
- [On Robert Browning] (2001)
- [On Slang] (1915)
- [On the Double-R Coffee House] (2001)
- [On the Pyramids] (2001)
- [On The Thing in the Woods by Harper Williams] (2001)
- [Sonnet Study] (2001)
- [Stanzas on Samerkand] (2001)
- [The Solace of Georgian Poetry] (2001)
- [To ?] (1984)
- [To ?] (1984)
- [To ?] (1984)
- [To ?] (2001)
- [To ?] (2001)
- [To ?] (2001)
- [To ?] (2001)
- [To ?] (2001)
- [To ?] (2001)
- [To a cat] (2001)
- [To Albert A. Sandusky] (1984)
- [To Albert A. Sandusky] (2001)
- [To Albert A. Sandusky] (2001)
- [To Albert A. Sandusky] (2001)
- [To Alfred Galpin, Myrta Alice Little, Winifred Jackson, and Verna McGeoch] (2001)
- [To Alfred Galpin, Victor E. Bacon, and Wilfred B. Talman] (2001)
- [To Alfred Galpin] (2001)
- [To Alfred Galpin] (2001)
- [To Alice M. Hamlet] (2001)
- [To Alice M. Hamlet] (2001)
- [To Anne Tillery Renshaw and Wilfred B. Talman] (1984)
- [To Anne Tillery Renshaw] (2001)
- [To Annie E. P. Gamwell] (1984)
- [To Annie E. P. Gamwell] (1984)
- [To Annie E. P. Gamwell] (2001)
- [To Annie E. P. Gamwell] (2001)
- [To Annie E. P. Gamwell] (2001)
- [To Arthur Goodenough] (2001)
- [To Arthur Leeds] (2001)
- [To Arthur Leeds] (2001)
- [To C. W. Smith and Harold Bateman Munroe] (2001)
- [To C. W. Smith] (1984)
- [To C. W. Smith] (1984)
- [To C. W. Smith] (2001)
- [To C. W. Smith] (2001)
- [To Charles A. A. Parker] (1984)
- [To Charles A. A. Parker] (2001)
- [To Charles A. A. Parker] (2001)
- [To D. R.] (1984)
- [To Edgar J. Davis] (2001)
- [To Edith Miniter] (2001)
- [To Edith Miniter] (2001)
- [To Edith Miniter] (2001)
- [To Edith Miniter] (2001)
- [To Edith Miniter] (2001)
- [To Edward H. Cole] (2001)
- [To Edward L. Sechrist] (2001)
- [To Edward L. Sechrist] (2001)
- [To Edward L. Sechrist] (2001)
- [To Eugene B. Kuntz et al.] (1984)
- [To Everett McNeil] (2001)
- [To Everett McNeil] (2001)
- [To Everett McNeill] (2001)
- [To Felis (Frank Belknap Long's cat)] (1984)
- [To Felis (Frank Belknap Long's cat)] (1984)
- [To Frank Belknap Long on His Birthday] (2001)
- [To Frank Belknap Long] (1984)
- [To Frank Belknap Long] (1984)
- [To Frank Belknap Long] (2001)
- [To Frank Belknap Long] (2001)
- [To Frank Belknap Long] (2001)
- [To George Kirk] (2001)
- [To George Kirk] (2001)
- [To His Mother on Thanksgiving] (2001)
- [To James F. Morton, Samuel Loveman, and Annie E. P. Gamwell] (2001)
- [To James F. Morton] (2001)
- [To James F. Morton] (2001)
- [To James F. Morton] (2001)
- [To John Milton Samples] (2001)
- [To John Russell] (2001)
- [To Jonathan E. Hoag, Samuel Loveman, and Eugene B. Kuntz] (2001)
- [To Jonathan E. Hoag] (2001)
- [To Jonathan E. Hoag] (2001)
- [To L. Evelyn Schump] (2001)
- [To Laurie A. Sawyer] (2001)
- [To Lillian D. Clark and C. W. Smith] (2001)
- [To Lillian D. Clark] (1984)
- [To Lillian D. Clark] (1984)
- [To Lillian D. Clark] (1984)
- [To Lillian D. Clark] (2001)
- [To Lillian D. Clark] (2001)
- [To Lillian McMullen and Jonathan E. Hoag] (2001)
- [To M. P. K.] (2001)
- [To Mary Faye Durr] (2001)
- [To Maurice W. Moe] (2001)
- [To Maurice W. Moe] (2001)
- [To Philip B. McDonald?] (2001)
- [To Rheinhart Kleiner and Jonathan E. Hoag] (2001)
- [To Rheinhart Kleiner, Alice M. Hamlet, and Eugene B. Kuntz] (2001)
- [To Rheinhart Kleiner] (1984)
- [To Rheinhart Kleiner] (2001)
- [To Rheinhart Kleiner] (2001)
- [To Rheinhart Kleiner] (2001)
- [To Rheinhart Kleiner] (2001)
- [To Rheinhart Kleiner] (2001)
- [To Samueal Loveman, Victor E. Bacon, and Eugene B. Kuntz] (2001)
- [To Samuel Loveman] (2001)
- [To Sarah Susan Lovecraft] (2001)
- [To Sonia H. Greene] (1984)
- [To Sonia H. Greene] (1984)
- [To Sonia H. Greene] (1984)
- [To Sonia H. Greene] (2001)
- [To Tat (Edith Miniter's cat)] (2001)
- [To Verna McGeoch] (2001)
- [To W. Paul Cook] (2001)
- [To W. Paul Cook] (2001)
- [To W. Paul Cook] (2001)
- [To W. Paul Cook] (2001)
- [To Wilfred B. Talman] (2001)
- [To Winifred Virginia Jackson] (2001)
- A Brumalian Wish [To Maurice W. Moe] (2001)
- A Christmas Greeting to Tryout (1977)
- A Cycle of Verse (1919)
- A Garden (1927)
- A June Afternoon (1918)
- A Klarkash-Ton, Señor de Averoigne [Spanish] (2019)
- A Memory (1943)
- A Memory (1943) with Howard Phillips Lovecraft
- A Memory (2008) [graphic format] with Richard Corben
- A Mississippi Autumn (1915)
- A Pastoral Tragedy of Appleton, Wisconsin (2001)
- A rosa da Inglaterra [Portuguese] (2013)
- A Rural Summer Eve (1916)
- A Summer Sunset and Evening (1937)
- A Winter Wish (1918)
- A Year Off (1943)
- Ad Balneum (2001)
-
Ad Britannos—1918?Ad Britannos-1918(1918)
- Ad Criticos (1914)
- Ad Criticos: Liber Secundus (1914)
- Ad Scribam (1920)
- Alethia Phrikodes (1952)
- Alfredo [French] (1992) with Howard Phillips Lovecraft
- Alfredo: A Tragedy (1966)
- Alfredo: Une tragédie [French] (2021) with Howard Phillips Lovecraft
- Alienation (1931)
- Alienation (1943) with Howard Phillips Lovecraft
- Aliénation [French] (2021) with Howard Phillips Lovecraft
- Alone in Space (1977)
- Ambition (1918)
- Ambition (1953) with Howard Phillips Lovecraft
- Amissa Minerva (1919)
- An Account in Verse of the Marvellous Adventures of H. Lovecraft, Esq. Whilst Travelling on the W. & B. Branch, N.Y.N.H. & H.R.R. in Jany. 1901 in One of Those Most Modern of Devices, to Wit: An Electric Train (1984)
- An American to Mother England (1916)
- An American to the British Flag (1917)
- An Elegy on Franklin Chase Clark, M.D. (1915)
- An Elegy on Phillips Gamwell, Esq. (1977)
- An Epistle to Francis, Ld. Belknap (1987)
- An Epistle to the Rt. Honorable Maurice Winter Moe, Esq. of Zythopolis, in the Northwest Territory of HIS MAJESTY'S American Dominion by L. Theobald, Jun. (1987)
- Antares (1985)
- Antares (1985) with Howard Phillips Lovecraft
- Antarktos (1930)
- Antarktos (1947) with Howard Phillips Lovecraft
- Antarktos [French] (2021) with Howard Phillips Lovecraft
- April (1917)
- April Dawn (1919)
- Arcadia (2001)
- Astrophobos (1918)
- Astrophobos [French] (2021) with Howard Phillips Lovecraft
- Attente [French] (2021) with Howard Phillips Lovecraft
- August (1918)
- Autumn (1917)
- Autumn (1953) with Howard Phillips Lovecraft
- Ave atque Vale (1927)
- Ave Atque Vale (1955) with Howard Phillips Lovecraft
- Azathoth (1931)
- Azathoth (1943) with Howard Phillips Lovecraft
- Azathoth [French] (2021) with Howard Phillips Lovecraft
- Background (1930)
- Background (1943) with Howard Phillips Lovecraft
- Battle Song (2019)
- Bells (1919)
- Bells (1953) with Howard Phillips Lovecraft
- Beyond Zimbabwe (1986)
- Birthday Lines to Margfred Galbraham (1977)
- Bouts Rimes (1986)
- Brick Row (1930)
- Britannia Victura (1917)
- Brotherhood (1916)
- Brumalia (1916)
- C.S.A. 1861-1865: To the Starry Cross of the SOUTH (2001)
- Ce qu'apporte la Lune [French] (1993) with Howard P. Lovecraft
- Ce qu'apporte la lune [French] (2021) with Howard Phillips Lovecraft
- Chloris and Damon (1923)
- Christmas (1920)
-
Christmas Greeting to Mrs. Phillips Gamwell—1925?Christmas Greeting to Mrs. Phillips Gamwell-1925(1925)
- Christmas Greetings (1984)
- Cindy: Scrub Lady in a State Street Skyscraper (1966)
- Cindy: Scrub-Lady in a State Street Skyscraper (1920)
- Cindy: Scrub-Lady in a State Street Skyscraper (1955) with Howard Phillips Lovecraft
- Cloches [French] (2021) with Howard Phillips Lovecraft
- Clouds (1919)
- Clouds (1955) with Howard Phillips Lovecraft
- Com a lua [Portuguese] (2005)
- Content (1916)
- Continuity (1936)
- Continuity (1943) with Howard Phillips Lovecraft
- Continuité [French] (2021) with Howard Phillips Lovecraft
- Crime of Crimes: Lusitania, 1915 (1915)
- Damon and Delia, a Pastoral (1918)
- Damon and Lycë (1984)
- Damon: A Monody (1919)
-
Damon—a Monody?Damon-a Monody(1919)
- Dans un cimetière condamné de Providence, où Poe marcha jadis [French] (2021) with Howard Phillips Lovecraft
- Das Gedächtnis [German] (2017)
- De Scriptore Mulieroso (1994)
- De Triumpho Naturae (1905)
- Dead Passion's Flame (2001)
- Death (1918)
- Der Wald [German] (1990)
- Despair (1919)
- Dreams of Yith (1934) with Duane W. Rimel
- Dreams of Yith (1934) with Duane W. Rimel
- Dreams of Yith [2] (1990) with Duane W. Rimel
- Drinking Song from the Tomb (1922)
- Désespoir [French] (2021) with Howard Phillips Lovecraft
- Earth and Sky (1917)
- Earth and Sky (1955) with Howard Phillips Lovecraft
- Edith Miniter (1934)
- El sueño invernal de Theobald [Spanish] (2010)
- Elegy on Phillips Gamwell, Esq. (1917)
- Epigram (1977)
- Epigrams (1984)
- Epistle to the Rt. Honble Maurice Winter Moe, Esq. of Zythopolis, in the Northwest Territory of HIS MAJESTY'S American Dominions (2001)
- Epitaph on ye Letterr Rrr........ (2001)
- Evening Star (1943)
- Evening Star (1943) with Howard Phillips Lovecraft
- Ex Oblivione (1921)
- Ex Oblivione (1921) with Ward Phillips
- Ex Oblivione [Italian] (1989)
- Ex oblivione [French] (1993) with Howard P. Lovecraft
- Ex Oblivione [Portuguese] (2009)
- Ex Oblivione [German] (2017)
- Ex oblivione [French] (2018)
- Ex Oblivione (2019) with Howard Phillips Lovecraft
- Ex Oblivione [Portuguese] (2021)
- Ex oblivione [French] (2021) with Howard Phillips Lovecraft
- Ex Oblivione [German] (2021)
- Ex-Poet's Reply (1920)
- Expectancy (1943)
- Expectancy (1943) with Howard Phillips Lovecraft
- Fact and Fancy (1917)
- Fact and Fancy (1955) with Howard Phillips Lovecraft
- Festival (1925)
- Festival (L'horreur de Yule) [French] (2021) with Howard Phillips Lovecraft
- Fill Up Your Glass (1987)
- Fill Up Your Glass (2015) with Howard Phillips Lovecraft
- Fragment on Whitman (1977)
- Fragments (2001)
- Frustra Praemunitus (1986)
- Fungi from Yuggoth (2011)
- Futurist Art (1917)
-
Für Clark Ashton Smith?Fuer Clark Ashton Smith[German] (2001) with Howard Phillips Lovecraft
-
Für Klarkash-Ton, Herr von Averoigne?Fuer Klarkash-Ton, Herr von Averoigne[German] (2007) with Howard Phillips Lovecraft
- Gaudeamus (1922)
- Gems from "In a Minor Key" (1977)
- Gems from In a Minor Key (1915)
- George Willard Kirk (1977)
-
Germania—1918?Germania-1918(1918)
- Good Saint Nick (2019)
- Grace (1918)
- Grace (1955) with Ward Phillips
- Greetings (1919)
- Gryphus in Ascinum Mutatus; or, how a Griffin became an Ass (2001)
- Gryphus in Asinum Mutatus (1984)
- H. Lovecraft's Attempted Journey betwixt Providence & Fall River on the N.Y.N.H. & H.R.R. (2001)
- H.P. Lovecraft's the Call of Cthulhu for Beginning Readers (2017) with R. J. Ivankovic
- Hallowe'en dans un faubourg [French] (2021) with Howard Phillips Lovecraft
- Hallowe'en in a Suburb (1926)
- Hallowe'en in a Suburb (2018) with Howard Phillips Lovecraft
- Halloween no subúrbio [Portuguese] (2022)
- Harbor Whistles (1939)
- Harbour Whistles (1930)
- Harbour Whistles (1943) with Howard Phillips Lovecraft
- Hedone (1984)
- Helene Hoffman Cole (1919)
- Helene Hoffman Cole: 1893-1919: The Club's Tribute (1919)
- Hellas (1918)
- Hesperia (unknown) with Howard Phillips Lovecraft
- Hesperia (1930)
- Hesperia [French] (2021) with Howard Phillips Lovecraft
- Holding Your Eight Hands (1969)
- Homecoming (1935)
- Homecoming (1943) with Howard Phillips Lovecraft
- Hylas and Myrrha: A Tale (1919)
- Hylas and Myrrha: A Tale (1953) with Howard Phillips Lovecraft
- Idle Lines on a Poetick Dunce (2001)
- In a Sequester'd Providence Churchyard Where Once Poe Walk'd (1936)
- In a Sequester'd Providence Churchyard Where Once Poe Walked (1984)
- In a Sequestered Churchyard Where Once Poe Walked (1937)
- In a Suburb (1926)
- In Memoriam: J. E. T. D. (1919)
- In Memoriam: Oscar Incoul Verelst of Manhattan: 1920-1926 (2001)
- Inspiration (1916)
- Inspiration (1953) with Howard Phillips Lovecraft
- Iterum Conjunctae (1917)
- Iterum Conjunctae (1953) with Howard Phillips Lovecraft
- January (1920)
- John Oldham: A Defence (1919)
- John Oldham—a Defence (1977)
- L'antique sentier [French] (2021) with Howard Phillips Lovecraft
- L'avant-poste [French] (2021) with Howard Phillips Lovecraft
- L'habitant [French] (2021) with Howard Phillips Lovecraft
- L'idole [French] (2021) with Howard Phillips Lovecraft
- La cité [French] (2021) with Howard Phillips Lovecraft
- La clé [French] (2021) with Howard Phillips Lovecraft
- La colline de Zaman [French] (2021) with Howard Phillips Lovecraft
- La cour [French] (2021) with Howard Phillips Lovecraft
- La fenêtre [French] (2021) with Howard Phillips Lovecraft
- La lampe [French] (2021) with Howard Phillips Lovecraft
- La maison [French] (2021) with Howard Phillips Lovecraft
-
La piste très ancienne?La piste tres ancienne[French] (1975)
- La ricorrenza [Italian] (1990)
- Laeta: A Lament (1918)
- Laeta; a Lament (1977)
- Lament for the Vanished Spider (1920)
- Le bois [French] (2021) with Howard Phillips Lovecraft
- Le canal [French] (2021) with Howard Phillips Lovecraft
- Le hurleur [French] (2021) with Howard Phillips Lovecraft
- Le lac du cauchemar [French] (2021) with Howard Phillips Lovecraft
- Le livre [French] (2021) with Howard Phillips Lovecraft
- Le messager [French] (2021) with Howard Phillips Lovecraft
- Le pharos des anciens [French] (2021) with Howard Phillips Lovecraft
- Le port [French] (2021) with Howard Phillips Lovecraft
- Le puits [French] (2021) with Howard Phillips Lovecraft
- Les chats [French] (2021) with Howard Phillips Lovecraft
- Les cloches [French] (2021) with Howard Phillips Lovecraft
- Les familiers [French] (2021) with Howard Phillips Lovecraft
- Les jardins de Yin [French] (2021) with Howard Phillips Lovecraft
- Les murs de brique de l'East India [French] (2021) with Howard Phillips Lovecraft
- Les pigeons [French] (2021) with Howard Phillips Lovecraft
- Les sifflets du port [French] (2021) with Howard Phillips Lovecraft
- Life's Mystery (2001)
- Lines for Poet's Night at the Scribbler's Club; Cleveland, October 13, 1923 (1955) with Howard Phillips Lovecraft
- Lines for Poets' Night at the Scribbler's Club (1986)
- Lines for Poets' Night at the Scribblers' Club: Cleveland, Octr. 13, 1923 (1924)
- Lines on a Dull Writer Having Insomnia (2001)
- Lines on Gen. Robert Edward Lee (1977)
- Lines on Gen. Robert Edward Lee: Born Jan. 19, 1807 (1917)
- Lines on Graduation from the R. I. Hospital's School of Nurses (1977)
- Lines on Graduation from the R.I. Hospital's School of Nurses (1917)
- Lines on the 25th Anniversary of the Providence Evening News, 1892 - 1917 (1955) with Howard Phillips Lovecraft
- Lines on the 25th. Anniversary of the Providence Evening News (1977)
- Lines on the 25th. Anniversary of the Providence Evening News, 1892-1917 (1917)
- Lines upon the Magnates of the Pulp (2001)
- Little Sam Perkins (1934)
- Lo desconocido [Spanish] (2003) with Elizabeth Berkeley and Lewis Theobald, Jr.
- Lullaby for the Dionne Quintuplets (2001)
- Maigres bêtes de la nuit [French] (2021) with Howard Phillips Lovecraft
- March (1915)
- Medusa: A Portrait (1921)
- Memoria [Italian] (1989)
- Memory (1919)
- Memory (1919) with Lewis Theobald, Jun.
- Memory [French] (2018)
- Memória [Portuguese] (2021)
- Mirage (1931)
- Mirage (1943) with Howard Phillips Lovecraft
- Mirage [French] (2021) with Howard Phillips Lovecraft
- Mirage [2] (2015) with Howard Phillips Lovecraft
- Monody on the Lake King Alcohol (unknown)
- Monody on the Lake King Alcohol (unknown) with Howard Phillips Lovecraft
- Monody on the Late King Alcohol (1919)
- Monos: An Ode (1918)
- Monos: An Ode (1953) with Howard Phillips Lovecraft
- Moons: An Ode (1977)
- Mother Earth (1919)
- Mother Earth (1955) with Howard Phillips Lovecraft
- My Lost Love (1984)
- Myrrha and Strephon (1919)
- Nathicana (1927)
- Nathicana (1927) with Albert Frederick Willie
- Nathicana (1955) with Howard Phillips Lovecraft
- Nemesis (1918)
- Nemesis (1918) with Howard P. Lovecraft
- New England (1914)
- New England Fallen (1943)
- New-England Fallen (1943)
- Night Gaunts (1936)
- Night-Gaunts (1930)
- Night-Gaunts (1930) with Howard Phillips Lovecraft
- North and South Britons (1919)
- Nostalgia (1930)
- Nostalgia (1943) with Howard Phillips Lovecraft
- Nostalgie [French] (2021) with Howard Phillips Lovecraft
- Nuages [French] (2021) with Howard Phillips Lovecraft
- Nyarlarthotep (1920)
- Nyarlathotep (1931)
- Nyarlathotep (1943) with Howard Phillips Lovecraft
- Nyarlathotep [Portuguese] (2009)
- Nyarlathotep [French] (2021) with Howard Phillips Lovecraft
- Némésis [French] (2021) with Howard Phillips Lovecraft
- O jardim [Portuguese] (2013)
- O que a lua traz consigo [Portuguese] (2021)
- Oceanus (1919)
- Oceanus (1955) with Howard Phillips Lovecraft
- Oct. 17, 1919 (1977)
- October (1920)
- October (1926)
- Océanus [French] (2021) with Howard Phillips Lovecraft
- Ode to Selene or Diana (1919)
- Old Christmas (1918)
- On a Battlefield in France (1918)
- On a Grecian Colonnade in a Park (1920)
- On a Modern Lothario (1914)
- On a New England Village Seen by Moonlight (1915)
- On a New-England Village Seen by Moonlight (1915)
- On a Pathetick Poem, by J. M. W. (2001)
- On a Poem for CHildren, Writ by J. M. W. (2001)
- On a Poet's Ninety-first Birthday (1922)
- On an Accomplished Young Linguist (2001)
- On an Unspoil'd Rural Prospect (1984)
- On Collaboration (1984)
- On Mr. L. Phillips Howard's Profound Poem Entitled "Life's Mystery" (1977)
- On Reading Lord Dunsany's "Book of Wonder" (1920)
- On Reading Lord Dunsany's Book of Wonder (1974)
- On Receiving a Picture of Swans (1916)
- On Receiving a Picture of the Marshes at Ipswich (1917)
- On Receiving a Picture of ye Towne of Templeton, in the Colonie of Massachusetts-Bay, with Mount Monadnock, in New-Hampshire, shewn in the Distance (1917)
- On Receiving a Portraiture of Mrs. Berkeley, ye Poetess (1984)
- On Recieving a Picture of Swans (1953) with Howard Phillips Lovecraft
- On Religion (1920)
- On the Achievements of a Popular Writer (1985)
- On the Cowboys of the West (1977)
- On the Cowboys of the West: In Whom Is Embodied the Nature-Worshipping Spirits of Classical Antiquity (1915)
- On the Creation of Niggers (1984)
- On the Death of a Rhyming Critic (1917)
- On the Death of a Rhyming Critic (1953) with Howard Phillips Lovecraft
- On the Death of a Rhyming Critic (1974) with Howard P. Lovecraft
- On the Habit of Letter-Writing (2001)
- On the Return of Maurice Winter Moe, Esq., to the Pedagogical Profession (1921)
- On the Return of Maurice Winter Moe, Esq.... (1977)
- On the Ruin of Rome (1977)
- On the Vanity of Human Ambition (1977)
-
On —————'s Gaining in Weight?On -----'s Gaining in Weight(2001)
On -'s Gaining in Weight - Os fungos de Yuggoth [Portuguese] (2013)
-
Pacifist War Song—1917?Pacifist War Song-1917(1917)
- Pacifist War Song—1917 (1955) with Howard Phillips Lovecraft
- Pan (2019)
- Percival Lowell (1917)
- Phaeton (1918)
- Plaster-All (Apologies to "Pastorale" of Mr. Crane in the "Dial.") (1992) with Part Pain
- Plaster-All (Apologies to "Pastorale" of Mr. Crane in the Dial.) (1992)
- Poemata Minora, Volume II (1984)
- Poursuite [French] (2021) with Howard Phillips Lovecraft
- Primavera (1925)
- Primavera [French] (2021) with Howard Phillips Lovecraft
- Prologue (1955) with Howard Phillips Lovecraft
- Prologue to "Fragments from an Hour of Inspiration" by Jonathan E. Hoag (1917)
- Prologue: To a Dreamer (2017)
- Providence (1924)
- Providence [French] (2021) with Howard Phillips Lovecraft
- Providence Amateur Press Club (Deceased) to the Athenaeum Club of Journalism (1984)
- Providence in 2000 A.D. (1912)
- Psychopompos (1919)
- Psychopompos (1937) with Howard Phillips Lovecraft
- Psychopompos [French] (1975)
- Psychopompos: A Tale in Rhyme (1919)
- Pursuit (1934)
- Pursuit (1943) with Howard Phillips Lovecraft
- Quinsnicket Park (1915)
- R. Kleiner, Laureatus, in Heliconem (1916)
- Recapture (1930)
- Recapture (1943) with Howard Phillips Lovecraft
- Recognition (1936)
- Recognition (1943) with Howard Phillips Lovecraft
- Reconnaissance [French] (2021) with Howard Phillips Lovecraft
- Regnar Lodbrog's Epicedium, or Funeral Song (8th Century) (1944)
- Regnar Lodbrug's Epicedium (1944)
- Regner Lodbrog's Epicedium (1944)
- Repris [French] (2021) with Howard Phillips Lovecraft
- Respite (1916)
- Retour à la maison [French] (2021) with Howard Phillips Lovecraft
- Revelation (1919)
- S. S. L.: Christmas 1920 (1984)
- Saturnalia (1984)
- Simplicity: A Poem (2001)
- Sir Thomas Tryout (1921)
- Sir Thomas Tryout: Died Nov. 15, 1921 (1921)
- Solstice (1925)
- Solstice (1955) with Howard Phillips Lovecraft
- Sonnet on Myself (1918)
- Sonnet Study (1977)
- Sors Poetae (1984)
- Souvenir [French] (1993) with Howard P. Lovecraft
- Souvenir [French] (2021) with Howard Phillips Lovecraft
- Spring (1919)
- St Toad [French] (2021) with Howard Phillips Lovecraft
- St. Toad's (1943)
- St. Toad's (1943) with Howard Phillips Lovecraft
- St. Toad's (1945) with J. H. Brownlow
- St. Toad's [2] (1945) with J. H. Brownlow
- Star Winds (2016)
- Star-Winds (unknown) with Howard Phillips Lovecraft
- Star-Winds (1930)
- Sueños de Yith [Spanish] (2010) with Duane W. Rimel and Clark Ashton Smith
- Sui raggi di luna [Italian] (1989)
- Sunset (1917)
- Sunset (2015) with Howard Phillips Lovecraft
- Temperance Song (1916)
- Terre Mère [French] (2021) with Howard Phillips Lovecraft
- The Absent Leader (1927)
- The Acolyte (unknown)
- The Ancient Track (1930) with Howard Phillips Lovecraft
- The Ancient Track (1930)
- The Bay-Stater's Policy (1915)
- The Beauties of Peace (1916)
- The Bells (1930)
- The Bells (1943) with Howard Phillips Lovecraft
- The Book (1934)
- The Book (1943) with Howard Phillips Lovecraft
- The Bookstall (1916)
- The Bookstall (1953) with Howard Phillips Lovecraft
- The Bride of the Sea (1976)
- The Canal (1932)
- The Canal (1943) with Howard Phillips Lovecraft
- The Canal (2008) [graphic format] with Richard Corben
- The Cats (1977)
- The City (1919)
- The Conscript (1977)
- The Courtyard (unknown) with Howard Phillips Lovecraft
- The Courtyard (1930)
- The Crime of Crimes (1915)
- The Dead Bookworm (1919)
- The Dead Bookworm (1955) with Howard Phillips Lovecraft
- The Dead Bookworm (1976) with John J. Jones
- The Decline and Fall of a Man of the World (1984)
- The Dream (1920)
- The Dream (1955) with Howard Phillips Lovecraft
- The Dweller (1930)
- The Dweller (1943) with Howard Phillips Lovecraft
- The East India Brick Row (2001)
- The Eidolon (1918)
- The Elder Pharos (1931)
- The Elder Pharos (1943) with Howard Phillips Lovecraft
- The Elder Pharos [2] (2015) with Howard Phillips Lovecraft
- The End of the Jackson (1914)
- The Familiars (1930)
- The Familiars (1943) with Howard Phillips Lovecraft
- The Feast (1923)
- The Feast (Hub Journalist Club, March 10, 1923) (1923)
- The Festival (1990)
- The Garden (1955) with Howard Phillips Lovecraft
- The Garden (1977)
- The Gardens of Yin (1932)
- The Gardens of Yin (1943) with Howard Phillips Lovecraft
- The Greatest Law (2001)
- The House (1920)
- The House (1920) with Ward Phillips
- The Howler (unknown) with Howard Phillips Lovecraft
- The Howler (1932)
- The Introduction (1937)
- The Isaacsonio-Mortoniad (1984)
- The Isaacsonio-Mortoniad: Composed in a Major Key (2001)
- The Key (1935)
- The Key (1943) with Howard Phillips Lovecraft
- The Lamp (1931)
- The Lamp (1943) with Howard Phillips Lovecraft
- The Lamp (2008) [graphic format] with Richard Corben
- The Last Pagan Speaks (1919)
- The Link (1918)
- The Magazine Poet (1915)
- The Members of the Men's Club of the First Universalist Church of Providence, R. I., to Its President, About to Leave for Florida on Account of His Health (1985)
- The Messenger (1938)
- The Messenger (1943) with Howard Phillips Lovecraft
- The Night Crawlers (1973)
- The Nightmare Lake (1919)
- The Nymph's Reply to the Modern Business Man (1917)
- The Nymph's Reply to the Modern Business Man (1955) with Howard Phillips Lovecraft
- The Odes of Horace: Book III, ix (1940)
- The Odes of Horace: Book III, ix: A Dialogue betwixt Horace and Lydia (2001)
- The Outpost (1930)
- The Pathetick History of Sir Wilful Wildrake (2001)
- The Peace Advocate (1917)
- The Pensive Swain (1919)
- The Pensive Swain (1953) with Howard Phillips Lovecraft
- The Pigeon-Flyers (unknown) with Howard Phillips Lovecraft
- The Pigeon-Flyers (1943)
- The Poe-et's Nightmare (1918)
- The Poe-et's Nightmare: A Fable (1918)
- The Poem of Ulysses, or The Odyssey (2001)
- The Poet of Passion (1917)
- The Poet of Passion (1955) with Howard Phillips Lovecraft
- The Poet's Rash Excuse (1920)
- The Port (unknown) with Howard Phillips Lovecraft
- The Port (1930)
- The Pow'r of Wine (1916)
- The Power of Wine: A Satire (1915)
- The Prophecy of Capys Secundus (1977)
- The Return (1926)
- The Return of Mr. Smith (1977)
- The Road to Ruin (1984)
- The Rose of England (1916)
- The Rutted Road (1917)
- The Scar (2008) [graphic format] with Richard Corben
- The Simple Speller's Tale (1915)
- The Simple Speller's Tale (Tanslated into English) (1915)
- The Smile (1916)
- The Spirit of Summer (1918)
- The State of Poetry (1915)
- The Teuton's Battle-Song (1916)
- The Unknown (1916)
- The Voice (1920)
- The Voice (1953) with Howard Phillips Lovecraft
- The Volunteer (1918)
- The Wanderer's Return (1983)
- The Well (unknown) with Howard Phillips Lovecraft
- The Well (1930)
- The Well (2008) [graphic format] with Richard Corben
- The White Elephant (1986)
- The Window (unknown) with Howard Phillips Lovecraft
- The Window (1931)
- The Window (2008) [graphic format] with Richard Corben
- The Window [2] (1931)
- The Wood (1929)
- Theobaldian Aestivation (1985)
- Theobaldian Hibernation (1984)
- Theobaldian Hibernation [To Edith Miniter] (1984)
- Theodore Roosevelt (1977)
- Theodore Roosevelt 1858-1919 (1919)
- To "The Scribblers" (1984)
- To a Dreamer (1921)
- To a Sophisticated Young Gentleman (2001)
- To a Young Poet in Dunedin (1984)
- To a Youth (1921)
- To Alan Seeger (1918)
- To Alfred Galpin, Esq. (1920)
- To an Accomplished Young Gentlewoman (1984)
- To an Accomplished Young Gentlewoman on Her Birthday, Decr. 2, 1914 (1984)
- To an Accomplished Young Linguist (1984)
- To an Author of Juvenile Fiction [Everett McNeil?] (2001)
- To an Infant (1925)
- To Arthur Goodenough (1977)
- To Arthur Goodenough, Esq. (1918)
- To Belinda, Favourite of the Graces (2001)
- To Charlie of the Comics (1916)
- To Clark Ashton Smith (1938)
- To Clark Ashton Smith Esq Upon His Fantastic Tales Verses Pictures and Sculptures (2016)
- To Clark Ashton Smith, Esq. (1938)
- To Clark Ashton Smith, Esq., Upon His Phantastick Tales, Verses, Pictures, & Sculptures (2017)
- To Clark Ashton Smith, Esq., Upon His Phantastick Tales, Verses, Pictures, and Sculptures (1943)
- To Col. Linkaby Didd (1984)
- To Col. Linkaby Didd: Guardian of Democracy (2001)
- To Damon (1923)
- To Damon (Alfred Galpin, Jun.): Upon His Coming of Age, Nov. 8, 1922 (1923)
- To Delia, Avoiding Damon (1918)
- To Edward John Moreton Drax Plunkett (1977)
- To Edward John Moreton Drax Plunkett Eighteenth Baron Dunsany (1953) with Howard Phillips Lovecraft
- To Edward John Moreton Drax Plunkett, Eighteenth Baron Dunsany (1919)
- To Endymion (1977)
- To Endymion (Fank Belknap Long, Jun.): Upon his coming of age, April 27, 1923 (1923)
- To General Villa (1914)
- To George Kirk, Esq.: Upon his entertaining a company in his new-decorated chambers (2001)
- To George Willard Kirk, Gent., of Chelsea-Village, in New-York, upon His Birthday, Novr. 25, 1925 (1927)
- To Greece, 1917 (1917)
- To Greece, 1917 (1955) with Howard Phillips Lovecraft
-
To Heliodora—Sister of Cytheraea?To Heliodora-Sister of Cytheraea(2001)
- To Jonathan E. Hoag, Esq.: On His Eighty-seventh Birthday, February 10, 1918 (1918)
- To Jonathan E. Hoag, Esq.: On His Ninety-sixth Birthday, February 10, 1927 (1927)
- To Jonathan Hoag (Upon His 95th Birthday) (1926)
- To Jonathan Hoag, Esq.: On His 88th Brithday, February 10, 1919 (1919)
- To Klarkash-Ton, Lord of Averoigne (1963)
- To M. W. M. (1917)
- To Maj.-Gen. Omar Bundy, U.S.A. (1919)
- To Members of the United Amateur Press Ass'n from the Providence Amateur Press Club (1977)
- To Miss Beryl Hoyt (1927)
-
To Miss Beryl Hoyt: Upon Her First Birthday—February 21, 1927?To Miss Beryl Hoyt: Upon Her First Birthday-February 21, 1927(1927)
- To Mistress Sophia Simple, Queen of the Cinema (1919)
- To Mr Finlay Upon His Drawing for Mr Bloch's Tale, The Faceless God (2016)
- To Mr. and Mrs. C. M. Eddy, Jr. (2001)
- To Mr. Baldwin, upon Receiving a Picture of Him in a Rural Bower (1984)
- To Mr. Finlay, Upon His Drawing for Mr. Bloch's Tale, "The Faceless God" (1943)
- To Mr. Galpin, upon His 20th Birthday... (1977)
- To Mr. Galpin: Upon His 20th. Birthday, November 8, 1921 (1921)
- To Mr. Hoag: On His 93rd Birthday, February 10, 1924 (1924)
- To Mr. Hoag: On His Ninetieth Birthday, February 10, 1921 (1921)
- To Mr. Hoag: On His Ninety-fourth Birthday, February 10, 1925 (1925)
- To Mr. Hoag: On His Ninety-second Birthday, February 10, 1923 (2001)
- To Mr. Kleiner, on Receiving from Him the Poetical Works of Addison, Gay, and Somerville (1984)
- To Mr. Lockhart, on His Poetry (1917)
- To Mr. Lockhart, on His Poetry (1953) with Howard Phillips Lovecraft
- To Mr. Munroe, on His Instructive and Entertaining Account of Switzerland (1984)
- To Mr. Terhune, on His Historical Fiction (1994)
- To Pan (1919)
- To Phillis (1920)
- To Rheinhart Kleiner, Esq., Upon His Town Fables and Elegies (1923)
-
To Rhodoclia—Peerless among Maidens?To Rhodoclia-Peerless among Maidens(2001)
- To S. S. L.: Christmas 1920 (1984)
- To S. S. L.—Oct. 17, 1920 (1977)
-
To S.S.L.—Oct. 17, 1920?To S.S.L.-Oct. 17, 1920(1977)
- To Saccharissa, Fairest of Her Sex (2001)
- To Saml Loveman Esq.: With a Belated Present of Some Stationery (1984)
- To Saml: Loveman, Gent., With a fellow-martyr's heartfelt sympathy (1984)
- To Samuel Loveman Esq.: Upon adorning his room for his birthday (2001)
- To Samuel Loveman, Esquire, on His Poetry and Drama, Writ in the Elizabethan Style (1915)
- To Samuel Loveman, Esquire, on His Poetry and Drama... (1977)
- To Selene (1977)
- To Templeton and Mount Monadnock (1917)
- To the A.H.S.P.C. on Receipt of the Christmas Pippin (1984)
- To the A.H.S.P.C. on Receipt of the May Pippin (1984)
- To the American Flag (1937)
- To the Arcadian (1984)
- To the Eighth of November (1919)
- To the Eighth of November (1953) with Howard Phillips Lovecraft
- To the Late John H. Fowler, Esq. (1977)
- To the Late John H. Fowler, Esq.: Author of Poems of the Supernatural (1916)
- To the Members of the Pin-Feathers on the Merits of Their Organisation, and of Their New Publication, The Pinfeather (1914)
- To the Members of the Pin-Feathers... (1977)
- To the Members of the United Amateur Press Association from the Providence Amateur Press Club (1915)
- To the Nurses of the Red Cross (1984)
- To the Old Pagan Religion (1919)
- To the Recipient of This Volume (1988)
- To the Rev. James Pyke (1914)
- To the Rev. James Pyke: On His Unpublished Verse (1914)
- To the Uncomparable Clorinda (2001)
- To Two Epgephi (1984)
- To Virgil Finlay: Upon His Drawing for Robert Bloch's Tale, "The Faceless God" (1937)
-
To Xanthippe, on Her Birthday—March 16, 1925?To Xanthippe, on Her Birthday-March 16, 1925(1984)
- To Zara (1965)
- Toile de fond [French] (2021) with Howard Phillips Lovecraft
- Tosh Bosh (1977)
- Tryout's Lament for the Vanished Spider (1920)
- Two Discarded Drafts of "The Well" (1984)
- Uma elegia ao Dr. Franklin Chase Clark [Portuguese] (2013)
- Un souvenir [French] (2021) with Howard Phillips Lovecraft
- Unda (1990)
- Unda; or, The Bride of the Sea (1916)
- Unda; ou, La fiancée de la mer [French] (2021) with Howard Phillips Lovecraft
- Unity (2017)
- untitled ('As Christmas snows (as yet a poet's trope)') (1984)
- untitled ('As when a pigeon, loos'd in realms remote,') (1984)
- untitled ('Each column by Potomac clear') (1984)
- untitled ('Enclos'd you'll find, if nothing fly astray,') (1984)
- untitled ('Haughty Sphinx, whose amber eyes') (1984)
- untitled ('In these dull lines, deserving of no praise,') (1984)
- untitled ('In wishing Christmas joys for you,') (1984)
- untitled ('In Yuletide mood my pencil fain would trace') (1984)
- untitled ('Little Tiger, burning bright') (1984)
- untitled ('May good St. Nick, like as a bird of night,') (1984)
- untitled ('My trifling lines, in wit too feebly dumb,') (1984)
- untitled ('Once more the ancient feast returns,') (1984)
- untitled ('Once more the greens and holly glow') (1984)
- untitled ('Precocious Sir, who draw'st with wizardry') (1984)
- untitled ('Restor'd to ancient scenes where I belong,') (1984)
- untitled ('Run out of slang, and far from fresh supplies,') (1984)
- untitled ('Slight is the tour my lines essay,') (1984)
- untitled ('St. John, whose art sublimely shines') (1984)
- untitled ('The cottage hearth beams warm and bright,') (1984)
- untitled ('There was an old geezer nam'd THEOBALD,') (1984)
- untitled ('Tho' short the course my humble note must run,') (1984)
- untitled ('Tribute, like Charity, begins at home,') (1984)
- untitled ('Whilst you invade with prattling joy') (1984)
- untitled ('With catnip deck the temple doors,') (1984)
- Vents stellaires [French] (2021) with Howard Phillips Lovecraft
- Ver Rusticum (1918)
- Ver Rusticum (1955) with Howard Phillips Lovecraft
- Verses Designed to be Sent by a Friend of the Author to His Brother-in-Law on New Year's Day (1984)
- Verses Designed to be Sent by a Friend of the Author to His Brother-in-Law on New-Year's Day (1984)
- Veteropinguis Redivivus (1984)
- Veteropinguis Redivivus: A Poem (2001)
- Was der Mond bringt [German] (2017)
- Waste Paper (1977)
- Waste Paper: A Poem of Profound Insignificance (1979)
- What the Moon Brings (1922)
- Where Once Poe Walked (1938)
- Wisdom (1919)
- With a Copy of Wilde's Fairy Tales (1984)
- Ye Ballade of Patrick von Flynn (1986)
- Ye Ballade of Patrick von Flynn; or, The Hibernio-German-American England-Hater (1916)
- Ye Ballade of Patrick von Flynn; or, The Hibernio-German-American England-Hater (1955) with Howard Phillips Lovecraft
- Ye Merry Christmas (1977)
- Yule Horror (1926)
- Yule-Horror (1926)
- Zaman's Hill (1934)
- Zaman's Hill (1943) with Howard Phillips Lovecraft
- À Clark Ashton Smith, au sujet de ses histoires fantastiques, de ses poèmes, images et sculptures [French] (2021) with Howard Phillips Lovecraft
- À M. Finlay, à propos de son illustration de la nouvelle de M. Bloch « Le dieu sans visage » [French] (2021) with Howard Phillips Lovecraft
- À un rêveur [French] (2021) with Howard Phillips Lovecraft
- Étoile du soir [French] (2021) with Howard Phillips Lovecraft
-
Εἰς Σφίγγην?Eis Sfiggin(1926)
Is Sfiggen
Is Sfigghn
Es Sfiggen
Es Sfigghn
- A Confession of Unfaith (1922)
- A Confession of Unfaith (1952) with Howard Phillips Lovecraft
- A Descent to Avernus (1929)
- A Descent to Avernus (1953) with Howard Phillips Lovecraft
- A Description of the Town of Quebeck, in New Fance, Lately added to His Britannick Majesty's Dominions (1976)
- A Description of the Town of Quebeck, in New France, Lately added to His Britannick Majesty's Dominions (1976) with H. Lovecraft
- A Few Words from the Masters (2000) with Robert E. Howard and Clark Ashton Smith
- A Group of Letters (1948)
- A Guide to Charleston, South Carolina (1936)
- A Layman Looks at the Government (2004)
- A Letter to E. Hoffmann Price (1948)
- A List of Certain Basic Underlying Horrors Effectively Used in Weird Fiction (1938)
- A Matter of Uniteds (1927)
- A Reply to The Lingerer (1917)
- A Reply to the Lingerer (1955) with Howard Phillips Lovecraft
- Addendum à « Histoire du Necronomicon », extrait d'une lettre à C.A. Smith [French] (2021)
- Addendum à « Histoire du Necronomicon », extrait d'une lettre à C.A. Smith [French] (2021) with Howard Phillips Lovecraft
- Advice for the Weird Fictioneer (2000)
- Afterword ("...and Their Memory Was a Bitter Tree...": Queen of the Black Coast and Others) (2008)
- Alcune annotazioni su una non-entità [Italian] (2013)
- Alcuni appuni sullo scrivere letteratura di genere [Italian] (2013)
- Algunas notas sobre ficción interplanetaria [Spanish] (2003)
- Amateur Criticism (1918)
- Amateur Criticism (1955) with Howard Phillips Lovecraft
- Amateur Journalism: Its Possible Needs and Betterment (1920)
- Americanism (1919)
- An Account of a Trip to the Antient Fairbanks House, in Dedham, and to the Red House Tavern in Sudbury, in the Province of the Massachusetts-Bay (2006)
- An Account of a Visit to Charleston, S. C. (2006)
- An Account of Charleston, in His Majty's Province of South-Carolina (1930)
- An Account of Charleston, in His Majty's Province of South-Carolina (1930) with H. Lovecraft
- Anglo-Saxondom (1918)
- Anglo-Saxondom (1953) with Howard Phillips Lovecraft
- Aperçus européens [French] (1992) with Sonia Greene and Howard Phillips Lovecraft
- Appendice (Bothon) [Italian] (2021)
- Appendice (Bothon) [Italian] (2021) with Howard Phillips Lovecraft
- Appendice à Prisonnier des pharaons [French] (2021) with Howard Phillips Lovecraft
- Appendix to Imprisoned with the Pharaohs (2021)
- Ars Gratia Artis (1921)
- At the Root (1918)
- Autobiographie: Quelques notes sur une non-entité [French] (2021) with Howard Phillips Lovecraft
- Autobiography: Some Notes on a Nonentity (1943)
- Autoritratto (Da una lettera a Maurice W. Moe, 5 aprile 1931) [Italian] (1990)
- Biographical Notice (1928)
- Bolshevism (1919)
- Breve biografia di uno scrittore da quattro soldi [Italian] (2013)
- Brief an Bernard Austin Dwyer [German] (1983)
- Brief an Frank Belknap Long [German] (1983)
- Brief von H. P. Lovecraft an Robert E. Howard [German] (2009)
- By Post from Providence (1937)
- Carta de H. P. Lovecraft a Robert E. Howard [Portuguese] (2013)
- Cats and Dogs (1926)
- Cats and Dogs (1937) with Lewis Theobald, Jr.
- Ce qui doit se dire en vers [French] (1991) with Howard Phillips Lovecraft
- Charleston (1936)
- Christmas Card to Robert Bloch, 1933 (1993)
- Commercial Blurbs (1925)
- Commonplace Book (1938)
- Commonplace Book [French] (2016)
- Complete Chronology (1937)
-
Concerning "Perisa—in Europe"?Concerning "Perisa-in Europe"(1917)
-
Concerning "Persia—in Europe"?Concerning "Persia-in Europe"(1955) with Howard Phillips Lovecraft
- Contemporary Reviews of Clark Ashton Smith (2006) with Anonymous and Anthony Boucher and William Stanley Braithwaite and William Foster Elliot and Porter Garnett and Arthur F. Hillman and John Jury and Vachel Lindsay and Edwin Markham and Harriet Monroe and Shaemus O'Sheel and Frank Morton Todd and Sophie Treadwell and G. R. Yeates
- Contemporary Reviews of Clark Ashton Smith (2006) with Anonymous and Anthony Boucher and William Stanley Braithwaite and William Foster Elliot and Porter Garnett and Arthur F. Hillman and John Jury and Vachel Lindsay and Edwin Markham and Harriet Monroe and Shamus O'Sheel and Frank Morton Todd and Sophie Treadwell and G. R. Y.
- Correspondence Between R. H. Barlow and Wilson Shepherd of Oakman, Alabama--Sept.-Nov. 1932 (1986)
- Das unheimliche Werk von William Hope Hodgson [German] (2017)
- Das übernatürliche Grauen in der Literatur [German] (2014)
- De quelques empreintes hollandaises en Nouvelle-Angleterre [French] (1992) with Howard Phillips Lovecraft
- Department of Public Criticism (1918)
- Description de la ville de Québec... [French] (1992) with Howard Phillips Lovecraft
- Diary 1937 (1987)
- Die Literatur des Grauens [German] (1985)
- Die Tradition der Weird Fiction in Amerika [German] (1983)
- Dreams and Fancies (1962)
- East and West Harvard Conservatism (1922)
- Ec'H-Pi-el Speaks (1972)
- Editorial Notes in The United Amateur (1920)
- Elements of a Weird Story (1938)
- En un solitario cementerio de providence por donde caminó Poe [Spanish] (2015)
- Enclosure to Letter to Clark Ashton Smith, [25 July 1935] (2017)
- Enclosure to Letter to Clark Ashton Smith, [30 January 1935] (2017)
- Enclosure to Letter to Clark Ashton Smith, [Postmarked 11 September 1933] (2017)
- Enclosure to Letter to Clark Ashton Smith, [Postmarked 3 November 1934] (2017)
- Enclosure to Letter to Clark Ashton Smith, [Postmarked Daytona Beach, Florida 16 June 1935] (2017)
- European Glimpses (1988) with Sonia Greene
- European Glimpses (1988) with Sonia H. Greene
- Excerpts from the H. P. Lovecraft Letters to August Derleth (2000)
- Excerpts from the Letters of H. P. Lovecraft [to Duane W. Rimel] (1942)
- Excerpts from the Letters of H.P. Lovecraft (1942)
- Extracts from the letters to G.W. Macauley (1980)
- Final Words (1921)
- For What Does the United Stand? (1920)
- Foreword (Dead Brides) (1999)
- Foreword (Tales of Three Hemispheres) (1922)
- Foreword (The Great God Pan & Xelucha) (2012)
- Foreword: Notes on Writing Weird Fiction (1937)
- Four Letters to Clark Ashton Smith (1971)
- From "Supernatural Horror in Literature" (2017)
- Genealogy of the Elder Races (1976)
- H. P. Lovecraft & Science Fiction (1967) with August Derleth
- H. P. Lovecraft & Science Fiction (1967) with uncredited
- H. P. Lovecraft an Fritz Leiber jun. [German] (2010)
- H. P. Lovecraft re Robert W. Chambers (1927)
- H. P. Lovecraft to Duane W. Rimel (19 November 1934) [letter] (2022)
- H. P. Lovecraft's "Sunset" (2019) with S. T. Joshi
-
H.P. Lovecraft Clark Ashton Smithről?H.P. Lovecraft Clark Ashton Smithrol[Hungarian] (2017)
H.P. Lovecraft Clark Ashton Smithrooel - Henry St Clair Whitehead (2009)
- Heritage or Modernism - Common Sense in Art Forms (1935)
- Heritage or Modernism: Common Sense in Art Forms (1935)
- History and Chronology of the Necronomicon Together with Some Pertinent Paragraphs (1948) with August Derleth
- Homes and Shrines of Poe (1934)
- Héritage ou modernisme : l'intelligence de l'art [French] (1992) with Howard Phillips Lovecraft
- Idealism and Materialism: A Reflection (1919)
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Idealism and Materialism—A Reflection?Idealism and Materialism-A Reflection(1952) with Howard Phillips Lovecraft
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Idealism and Materialism—A Reflection?Idealism and Materialism-A Reflection(1995)
- Idéalisme et matérialisme : une réflexion [French] (1992) with Howard Phillips Lovecraft
- In a Major Key (1915)
- In Defense of Dagon (1921)
- In memoriam [Portuguese] (2005)
- In memoriam : Henry St. Clair Whitehead [French] (1991) with Howard Phillips Lovecraft
- In Memoriam: Henry St. Clair Whitehead (1933)
- In Memoriam: Henry St. Clair Whitehead (1933) with uncredited
- In Memoriam: Robert E. Howard (1936) with Jack Byrne and Otis Adelbert Kline and E. Hoffmann Price
- In Memoriam: Robert E. Howard (2018)
- In Memoriam: Robert Ervin Howard (1936)
- In Memoriam: Robert Ervin Howard [German] (2012)
- In Memorium: Robert Ervin Howard (1936) with Jack Byrne and Otis Adelbert Kline and E. Hoffmann Price
- In the Editor's Study (1923)
- Instructions in Case of Decease (1985)
- Instruzione in caso di dicesso [Italian] (2013)
- Introduction (The King in Yellow) (2014)
- Introduction from 'Supernatural Horror in Literature' (2013)
- Introduction to "Supernatural Horror in Literature" (1927)
- Introduction to Hoag's Poetical Works (1980)
- Introduction: Letter to Donald A. Wollheim (1938)
- Introduction: The Hyborian Age (2007)
- Is Mars an Inhabited World? (1906)
- Journal de 1937 [French] (2021) with Howard Phillips Lovecraft
- June Skies (1916)
- Katzen und Hunde [German] (2007) with Howard Phillips Lovecraft
- L'américanisme [French] (1992) with Howard Phillips Lovecraft
- L'incantation de Red Hook [French] (1992) with Howard Phillips Lovecraft
- L'épidémie du vers libre [French] (1991) with Howard Phillips Lovecraft
- La coalition loyale [French] (1992) with Howard Phillips Lovecraft
- La confession d'un incroyant [French] (1992) with Howard Phillips Lovecraft
- La littérature de Rome [French] (1991) with Howard Phillips Lovecraft
- La renaissance de l'humanité [French] (1992) with Howard Phillips Lovecraft
- La Vieille Angleterre et le "trait d'union" [French] (1992) with Howard Phillips Lovecraft
- Last Autumn, Last Winter (1975)
- Le cosmos et la religion [French] (1992) with Howard Phillips Lovecraft
- Le crime du siècle [French] (1992) with Howard Phillips Lovecraft
- Le livre de raison [French] (1993) with Howard P. Lovecraft
- Le livre de raison [French] (2021) with Howard Phillips Lovecraft
- Le monde anglo-saxon [French] (1992) with Howard Phillips Lovecraft
- Le temps et l'espace [French] (1992) with Howard Phillips Lovecraft
- Les limites du surnaturel [French] (1992)
- Les limites du surnaturel [French] (1992) with Howard Phillips Lovecraft
- Les Mouches Fantastiques (1918)
- Les Mouches Fantastiques (1955) with Howard Phillips Lovecraft
- Les serviteurs de Satan [French] (1983) with H.-P. Lovecraft
- Letter (All-Story Cavalier, August 15, 1914) (1914)
- Letter (All-Story, March 7, 1914) (1914)
- Letter (Scientific American, August 5, 1906): Trans-Neptunian Planets (1976)
- Letter (The Fantasy Fan, April 1934) (1934)
- Letter (The Fantasy Fan, December 1933) (1933)
- Letter (The Fantasy Fan, December 1934) (1934)
- Letter (The Fantasy Fan, January 1934) (1934)
- Letter (The Fantasy Fan, January 1934) [2] (1934)
- Letter (The Fantasy Fan, July 1934) (1934)
- Letter (The Fantasy Fan, March 1934) (1934)
- Letter (The Fantasy Fan, March 1934) [2] (1934)
- Letter (The Fantasy Fan, May 1934) (1934)
- Letter (The Fantasy Fan, November 1933) (1933)
- Letter (The Fantasy Fan, October 1933) (1933)
- Letter (The Fantasy Fan, October 1933) [2] (1933)
- Letter (The Fantasy Fan, October 1934) (1934)
- Letter (Weird Tales, February 1926) (1926)
- Letter (Weird Tales, February 1928) (1928)
- Letter (Weird Tales, February 1936): An Anagrammatic Alias (1936)
- Letter (Weird Tales, January 1924) (1924)
- Letter (Weird Tales, January 1928) (1928)
- Letter (Weird Tales, January 1934) (1934)
- Letter (Weird Tales, July 1930) (1930)
- Letter (Weird Tales, March 1924) (1924)
- Letter (Weird Tales, March 1928) (1928)
- Letter (Weird Tales, October 1923) (1923)
- Letter (Weird Tales, October 1936) (1936)
- Letter (Weird Tales, September 1923) (1923)
- Letter to August Derleth, August 3, 1926 (1983)
- Letter to August Derleth, August 9, 1926 (1983)
- Letter to Ben Abramson (1937)
- Letter to Bernard Austin Dwyer (1968)
- Letter to Bertrand K. Hart (1930)
- Letter to Clark Ashton Smith [Postmarked Brooklyn, N.Y., January 20, 1926] (2017)
- Letter to Clark Ashton Smith [Postmarked Newport, R.I., 14 July 1927] (2017) with Donald Wandrei
- Letter to Clark Ashton Smith [Postmarked Providence, R.I., 8 March 1927] (2017)
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Letter to Clark Ashton Smith, 29th Æon— Cycle of the Spawning of the Shoggoths, Valley of Pnath [mid-November 1930]?Letter to Clark Ashton Smith, 29th Eon- Cycle of the Spawning of the Shoggoths, Valley of Pnath [mid-November 1930](2017)
- Letter to Clark Ashton Smith, 7th Ultra-Violet Plenilune, 98463mnth Year of the Crumbling of Yaddith's Citadel After the Coming of the Ciscous and Unspeaking Ones [15 April 1931] (2017)
- Letter to Clark Ashton Smith, [25 December 1930] (2017)
- Letter to Clark Ashton Smith, [29? November 1930] (2017)
- Letter to Clark Ashton Smith, [3 July 1929] (2017)
- Letter to Clark Ashton Smith, [8 February 1931] (2017)
- Letter to Clark Ashton Smith, [appended to Letter by R. H. Barlow, 10 May 1934] (2017) with R. H. Barlow
- Letter to Clark Ashton Smith, [c. 25 September 1930] (2017)
- Letter to Clark Ashton Smith, [c. 6 November 1931] (2017)
- Letter to Clark Ashton Smith, [early March 1933] (2017)
- Letter to Clark Ashton Smith, [January 1932] (2017)
- Letter to Clark Ashton Smith, [June 1935] (2017)
- Letter to Clark Ashton Smith, [late December 1928] (2017)
- Letter to Clark Ashton Smith, [late December 1933] (2017)
- Letter to Clark Ashton Smith, [mid-December 1931] (2017)
- Letter to Clark Ashton Smith, [mid-December 1935] (2017)
- Letter to Clark Ashton Smith, [No postmark; enclosed with a letter c. late May/early June 1934] (2017)
- Letter to Clark Ashton Smith, [October 1930] (2017)
- Letter to Clark Ashton Smith, [Postmarked Boston Mass., 25 November 1934] (2017)
- Letter to Clark Ashton Smith, [Postmarked Boston Mass., c. 17 October 1935] (2017) with Samuel Loveman
- Letter to Clark Ashton Smith, [Postmarked Boston Mass., c. 17 October 1935] (2017) with Sam Loveman
- Letter to Clark Ashton Smith, [Postmarked Boston, Mass., 5 January 1929] (2017) with Samuel Loveman
- Letter to Clark Ashton Smith, [Postmarked Boston, Mass., 5 October 1931] (2017) with W. Paul Cook
- Letter to Clark Ashton Smith, [Postmarked Charleston, S.C., 25 April 1934] (2017)
- Letter to Clark Ashton Smith, [Postmarked Charleston, S.C., 26 August 1935] (2017)
- Letter to Clark Ashton Smith, [Postmarked Charleston, S.C., 27 April 1934] (2017)
- Letter to Clark Ashton Smith, [Postmarked Charleston, S.C., 30 April 1934] (2017)
- Letter to Clark Ashton Smith, [Postmarked De Land, Fla., 1 July 1935] (2017)
- Letter to Clark Ashton Smith, [Postmarked De Land, Fla., May 1934] (2017) with R. H. Barlow
- Letter to Clark Ashton Smith, [Postmarked Gloucester, Mass., 1 September 1927] (2017)
- Letter to Clark Ashton Smith, [Postmarked Kingston, N.Y., 15 May 1929] (2017) with Bernard Austin Dwyer
- Letter to Clark Ashton Smith, [Postmarked Kingston, N.Y., 15 May 1929] (2017) with Bernard Dwyer
- Letter to Clark Ashton Smith, [Postmarked Kingston, N.Y., 4 June 1930] (2017) with Bernard Austin Dwyer
- Letter to Clark Ashton Smith, [Postmarked Kingston, N.Y., 4 June 1930] (2017) with Bernard Dwyer
- Letter to Clark Ashton Smith, [Postmarked Nantucket, Mass., 28 July 1934] (2017)
- Letter to Clark Ashton Smith, [Postmarked New Orleans, La., 15 June 1932] (2017) with E. Hoffmann Price
- Letter to Clark Ashton Smith, [Postmarked New York, N.Y., 18 July 1928] (2017) with Frank Belknap Long and Donald Wandrei
- Letter to Clark Ashton Smith, [Postmarked New York, N.Y., 26 April 1929] (2017) with Gerry Butler and Frank Belknap Long and Samuel Loveman and Vrest Orton and Wilfred Blanch Talman
- Letter to Clark Ashton Smith, [Postmarked New York, N.Y., 26 April 1929] (2017) with Gerry Butler and HPL and Frank B. Long, Jr. and Sam Loveman and Vrest Orton and Wilfred B. Talman
- Letter to Clark Ashton Smith, [Postmarked New York, N.Y., 7 September 1935] (2017) with Frank Belknap Long and Donald Wandrei
- Letter to Clark Ashton Smith, [Postmarked Newburyport, Mass., 30 August 1927] (2017)
- Letter to Clark Ashton Smith, [Postmarked Onset, Mass., 25 July 1933] (2017)
- Letter to Clark Ashton Smith, [Postmarked Providence R.I. 21 January 1923] (2017)
- Letter to Clark Ashton Smith, [Postmarked Providence R.I., 19 September 1936] (2017) with Harry K. Brobst and James F. Morton
- Letter to Clark Ashton Smith, [Postmarked Providence R.I., 28 October 1935] (2017)
- Letter to Clark Ashton Smith, [Postmarked Providence, R.I., 1 August 1927] (2017) with W. Paul Cook and James F. Morton and H. Warner Munn and Donald Wandrei
- Letter to Clark Ashton Smith, [Postmarked Providence, R.I., 1 August 1927] (2017) with W. Paul Cook and James F. Morton and H. Warner Munn and The Wanderer
- Letter to Clark Ashton Smith, [Postmarked Providence, R.I., 1 August 1933] (2017) with James F. Morton
- Letter to Clark Ashton Smith, [Postmarked Providence, R.I., 10 November 1934] (2017)
- Letter to Clark Ashton Smith, [Postmarked Providence, R.I., 10 October 1933] (2017)
- Letter to Clark Ashton Smith, [Postmarked Providence, R.I., 13 May 1932] (2017)
- Letter to Clark Ashton Smith, [Postmarked Providence, R.I., 14 August 1927] (2017) with W. Paul Cook and H. Warner Munn
- Letter to Clark Ashton Smith, [Postmarked Providence, R.I., 14 December 1933] (2017)
- Letter to Clark Ashton Smith, [Postmarked Providence, R.I., 16 June 1933] (2017)
- Letter to Clark Ashton Smith, [Postmarked Providence, R.I., 17 October 1934] (2017)
- Letter to Clark Ashton Smith, [Postmarked Providence, R.I., 19 March 1934] (2017)
- Letter to Clark Ashton Smith, [Postmarked Providence, R.I., 20 September 1933] (2017)
- Letter to Clark Ashton Smith, [Postmarked Providence, R.I., 21 February 1933] (2017)
- Letter to Clark Ashton Smith, [Postmarked Providence, R.I., 21 July 1927] (2017) with C. M. Eddy, Jr. and Frank Belknap Long and Donald Wandrei
- Letter to Clark Ashton Smith, [Postmarked Providence, R.I., 21 July 1927] (2017) with C. M. Eddy, Jr. and Frank Belknap Long, Jr. and Donald Wandrei
- Letter to Clark Ashton Smith, [Postmarked Providence, R.I., 22 March 1934] (2017)
- Letter to Clark Ashton Smith, [Postmarked Providence, R.I., 24 February 1933] (2017)
- Letter to Clark Ashton Smith, [Postmarked Providence, R.I., 24 January 1934] (2017)
- Letter to Clark Ashton Smith, [Postmarked Providence, R.I., 26 August 1933] (2017)
- Letter to Clark Ashton Smith, [Postmarked Providence, R.I., 28 July 1934] (2017)
- Letter to Clark Ashton Smith, [Postmarked Quebec, Canada, 1 September 1930] (2017)
- Letter to Clark Ashton Smith, [Postmarked Quebec, Canada, 3 September 1933] (2017)
- Letter to Clark Ashton Smith, [Postmarked Richmond, Va., 10 May 1930] (2017)
- Letter to Clark Ashton Smith, [Postmarked Richmond, Va., 2 May 1929] (2017)
- Letter to Clark Ashton Smith, [Postmarked St. Augustine, Fla., 15 May 1931] (2017)
- Letter to Clark Ashton Smith, [written on letter by Farnsworth Wright to Clark Ashton Smith dated 23 March 1934] (2017)
- Letter to Clark Ashton Smith, Abandoned Church of St. Toad in the Crumbling Slums of Ancient Yothby. Hour of the Scratching Within the Sealed Spire. [Postmarked 11 September 1933] (2017)
- Letter to Clark Ashton Smith, Above the Sunken Citadel of Yo. Hour of the Bubbling. [Postmarked 15 March 1933] (2017)
- Letter to Clark Ashton Smith, April 10, 1930 (2017)
- Letter to Clark Ashton Smith, April 14, 1929 (2017)
- Letter to Clark Ashton Smith, April 19, 1928 (2017)
- Letter to Clark Ashton Smith, April 2[, 1928] (2017)
- Letter to Clark Ashton Smith, April 4, 1927 (2017)
- Letter to Clark Ashton Smith, April 4, 1932 (1971)
- Letter to Clark Ashton Smith, Arkahm: the Nameless Graveyard on Hangman's Hill: Hour When the Vast Sinister Willow with Twisted Roots Shakes Against the Wind [Postmarked 13 April 1934] (2017)
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Letter to Clark Ashton Smith, At the Edge of the Voor—Hour When the Aklo Colours Corruscate [Postmarked 9 March 1934]?Letter to Clark Ashton Smith, At the Edge of the Voor-Hour When the Aklo Colours Corruscate [Postmarked 9 March 1934](2017)
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Letter to Clark Ashton Smith, At the Monolith on the Mound —Hour That the Dogs Howl [Postmarked 11 February 1934]?Letter to Clark Ashton Smith, At the Monolith on the Mound -Hour That the Dogs Howl [Postmarked 11 February 1934](2017)
- Letter to Clark Ashton Smith, Aug. 9, 1926 (2017)
- Letter to Clark Ashton Smith, August 12, 1922 (2017)
- Letter to Clark Ashton Smith, August 18, 1925 (2017)
- Letter to Clark Ashton Smith, August 2, 1927 (2017)
- Letter to Clark Ashton Smith, August 28, 1925 (2017)
- Letter to Clark Ashton Smith, August 31, 1928 (2017)
- Letter to Clark Ashton Smith, Before the Topless Monolith of Ys, in the Accursed Garden of Nyan-Ho, Hour of the Rapping from Inside. [17 September 1932] (2017)
- Letter to Clark Ashton Smith, Beneath the Trap-Door in the Floor of the Sunken Temple of Lyan-Zo, in the Lake of Hali. Hour of the Howl from the Sealed Doorway. [Postmarked 30 October 1931] (2017)
- Letter to Clark Ashton Smith, Beyond the Inner Gate: Hour When the Ancient Ones Sway on Their Pillars. [8 April 1933] (2017)
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Letter to Clark Ashton Smith, Beyond the Tunnel of Silence— —Hour of the Boiling in the Gulf [24 January 1936]?Letter to Clark Ashton Smith, Beyond the Tunnel of Silence- -Hour of the Boiling in the Gulf [24 January 1936](2017)
- Letter to Clark Ashton Smith, Black Throne of Azathoth, Outside Time & Space. [Postmarked 27 August 1932] (2017)
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Letter to Clark Ashton Smith, Bottomless Chasm of Zhun— Hour of the Green Shining Below [Postmarked 28 October 1934]?Letter to Clark Ashton Smith, Bottomless Chasm of Zhun- Hour of the Green Shining Below [Postmarked 28 October 1934](2017)
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Letter to Clark Ashton Smith, Bottomless Well of Yeguggon— Hour That the Snout Appears [20 June 1936]?Letter to Clark Ashton Smith, Bottomless Well of Yeguggon- Hour That the Snout Appears [20 June 1936](2017)
- Letter to Clark Ashton Smith, c. 3 March 1924 (2017)
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Letter to Clark Ashton Smith, Cave of the Shining Trapezohedron —Hour of the Purple Glow [10 November 1935]?Letter to Clark Ashton Smith, Cave of the Shining Trapezohedron -Hour of the Purple Glow [10 November 1935](2017)
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Letter to Clark Ashton Smith, Cave of Zhod—Hour of the Tapping Beyond the Inner Wall [8 September 1934]?Letter to Clark Ashton Smith, Cave of Zhod-Hour of the Tapping Beyond the Inner Wall [8 September 1934](2017)
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Letter to Clark Ashton Smith, Central Unlighted Space —Hour That the Darkness Moves [Postmarked 23 April 1936]?Letter to Clark Ashton Smith, Central Unlighted Space -Hour That the Darkness Moves [Postmarked 23 April 1936](2017)
- Letter to Clark Ashton Smith, Concave Cliffs by the Tarn of Kyagoph; Hour of the Reddening of the Dark Waters [16 January 1932] (2017)
- Letter to Clark Ashton Smith, Crater of Yabin, on the Mountain of the Ultimate Rim, Hour of the Black Geyser [23 September 1931] (2017)
- Letter to Clark Ashton Smith, Crest of Unknown Kadath in the Cold Waste, Whence Is Seen the Insufferable Perspective. Hour of the Mounstrous Looming from the Unplaceable Direction. [29 November 1933] (2017)
- Letter to Clark Ashton Smith, Crypt Beneath the Jungle Temple of Nythrun-Hlo; Hour of the Feeding of Munsh, Which Is Neither Fungus Nor God. [11 June 1932] (2017)
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Letter to Clark Ashton Smith, Crypt of H'hphu-Yys-Echrr on the Extra-Cosmic Coment of Phphun —Hour of Approach to the Black Sun Gnorr-Kthun in the 7th Dimension Beyond the Uttermost Rim [11 September 1931]?Letter to Clark Ashton Smith, Crypt of H'hphu-Yys-Echrr on the Extra-Cosmic Coment of Phphun -Hour of Approach to the Black Sun Gnorr-Kthun in the 7th Dimension Beyond the Uttermost Rim [11 September 1931](2017)
- Letter to Clark Ashton Smith, Crypt of the Citadel Atop Never-Trodden Yaddith-Gho: Hour of the Trap Door from Beneath ____ [Postmarked 3 May 1933] (2017)
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Letter to Clark Ashton Smith, Crypt of Thoggon —Hour of the Slimy Trail [Postmarked 29 September 1936]?Letter to Clark Ashton Smith, Crypt of Thoggon -Hour of the Slimy Trail [Postmarked 29 September 1936](2017)
- Letter to Clark Ashton Smith, Cyclopean Ruins of Shog: Hour of the Lambint Glow Around the Sealed Door. [Postmarked 15 August 1933] (2017)
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Letter to Clark Ashton Smith, Daemon-Curst Wood of Yoth— Hour That the Livid, Fungous Boughs Sway Against the Muttering Wind [22 October 1933]?Letter to Clark Ashton Smith, Daemon-Curst Wood of Yoth- Hour That the Livid, Fungous Boughs Sway Against the Muttering Wind [22 October 1933](2017)
- Letter to Clark Ashton Smith, Dec. 19, 1929 (2017)
- Letter to Clark Ashton Smith, Dec. 28, 1927 (2017)
- Letter to Clark Ashton Smith, Dec. 3, 1929 (2017)
- Letter to Clark Ashton Smith, Dec. 4 [1923] (2017)
- Letter to Clark Ashton Smith, Dec. 8, 1928 (2017)
- Letter to Clark Ashton Smith, December 27, 1925 (2017)
- Letter to Clark Ashton Smith, Decr. 11, 1926 (2017)
- Letter to Clark Ashton Smith, Decr. 12, 1925 (2017)
- Letter to Clark Ashton Smith, Decr. 2, 1922 (2017)
- Letter to Clark Ashton Smith, Deep of Gba-Ktan, Beyond Devil's Reef Off Coast of Innsmouth, Hour of Nameless Swarming. [20 November 1931] (2017)
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Letter to Clark Ashton Smith, Desert City of Ghin— Hour of the Rearing of the Sand-Burrowers. [5 December 1932]?Letter to Clark Ashton Smith, Desert City of Ghin- Hour of the Rearing of the Sand-Burrowers. [5 December 1932](2017)
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Letter to Clark Ashton Smith, Desert of Nizab-Yun— Hour of the Black Mirage [2 December 1935]?Letter to Clark Ashton Smith, Desert of Nizab-Yun- Hour of the Black Mirage [2 December 1935](2017)
- Letter to Clark Ashton Smith, February 16, 1932 (1971)
- Letter to Clark Ashton Smith, February 18, 1933 (1971)
- Letter to Clark Ashton Smith, Feby. 13, 1929 (2017)
- Letter to Clark Ashton Smith, Feby. 18, 1927 (2017)
- Letter to Clark Ashton Smith, Feby. 18[, 1928] (2017)
- Letter to Clark Ashton Smith, Feby. 2, 1930 (2017)
- Letter to Clark Ashton Smith, Feby. 26, 1926 (2017)
- Letter to Clark Ashton Smith, Feby. 27, 1930 (2017)
- Letter to Clark Ashton Smith, Feby. 9, 1926 (2017)
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Letter to Clark Ashton Smith, Field of the Ultra-Spectral Rays —Hour of the Spiral Wind from Nith [29 June 1933]?Letter to Clark Ashton Smith, Field of the Ultra-Spectral Rays -Hour of the Spiral Wind from Nith [29 June 1933](2017)
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Letter to Clark Ashton Smith, Forest of Gnoth-Yna, Brick of the Chasm of Khe— Third Beat Before the Spouting of the Black Geyser. [1 August 1931]?Letter to Clark Ashton Smith, Forest of Gnoth-Yna, Brick of the Chasm of Khe- Third Beat Before the Spouting of the Black Geyser. [1 August 1931](2017)
- Letter to Clark Ashton Smith, Friday [16 April 1927] (2017)
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Letter to Clark Ashton Smith, From the 66th Vortex of the New Space-Time Abyss— Hour of the Faint Scratching. [31 May 1933]?Letter to Clark Ashton Smith, From the 66th Vortex of the New Space-Time Abyss- Hour of the Faint Scratching. [31 May 1933](2017)
- Letter to Clark Ashton Smith, From the Grey Interstice Betwixt the Cosmoses Nith & & H'bga, on the Outer Rim of Electronic Entity. Hour of the Unseen Drum-Beat. [13 October 1931] (2017)
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Letter to Clark Ashton Smith, From the Ruined Brick Tower with the Sealed Door—Hour of the Black, Beating Wings—— [Postmarked 13 December 1933]?Letter to Clark Ashton Smith, From the Ruined Brick Tower with the Sealed Door-Hour of the Black, Beating Wings-- [Postmarked 13 December 1933](2017)
Letter to Clark Ashton Smith, From the Ruined Brick Tower with the Sealed Door-Hour of the Black, Beating Wings- [Postmarked 13 December 1933] - Letter to Clark Ashton Smith, Gate of Never-Uttered Name in the Hillside of Nirighom Beyond the Black Wood. Hour of the Surging of the Green Vapour. [8 February 1932] (2017)
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Letter to Clark Ashton Smith, Gateway of the Zhirns— Hour of the Chanting Within [Postmarked 30 September 1934]?Letter to Clark Ashton Smith, Gateway of the Zhirns- Hour of the Chanting Within [Postmarked 30 September 1934](2017)
- Letter to Clark Ashton Smith, Grey Plain Before the Sealed Stone Tower: Hour of the Alien-Toned Bell Stroke Within. [24 March 1933] (2017)
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Letter to Clark Ashton Smith, Gulf of Blackness—Hour of the Knell. [10 July 1932]?Letter to Clark Ashton Smith, Gulf of Blackness-Hour of the Knell. [10 July 1932](2017)
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Letter to Clark Ashton Smith, Halls of Eblis— Night of the Æquinox. [Postmarked 23 September 1932]?Letter to Clark Ashton Smith, Halls of Eblis- Night of the Equinox. [Postmarked 23 September 1932](2017)
- Letter to Clark Ashton Smith, Hour of the Black Moon [Postmarked 6 August 1930] (2017)
- Letter to Clark Ashton Smith, Hour of the Thin Piping of the Daemon Flutes, in the year of N'gah, [17 October 1930] (2017)
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Letter to Clark Ashton Smith, House of the Gnoles— Hour of the Thin Pittering [16 January 1935]?Letter to Clark Ashton Smith, House of the Gnoles- Hour of the Thin Pittering [16 January 1935](2017)
- Letter to Clark Ashton Smith, In the Orange, Carmine, & Blue Litten Zone at the End of the Angles Beyond the Vague Twilight Abysses. Hour of the Sounding of the Gong at the Bottom of the Unplumbed Pit. [Postmarked 26 February 1932] (2017)
- Letter to Clark Ashton Smith, January 17, 1930 (2017)
- Letter to Clark Ashton Smith, Jany 11, 1923 (2017)
- Letter to Clark Ashton Smith, Jany. 17, 1927 (2017)
- Letter to Clark Ashton Smith, Jany. 18, 1926 (2017)
- Letter to Clark Ashton Smith, Jany. 2, 1927 (2017)
- Letter to Clark Ashton Smith, Jany. 21, 1927 (2017)
- Letter to Clark Ashton Smith, Jany. 25, 1924 (2017)
- Letter to Clark Ashton Smith, Jany. 31, 1928 (2017)
- Letter to Clark Ashton Smith, July 15, 1926 (2017)
- Letter to Clark Ashton Smith, July 15, 1927 (2017) with Donald Wandrei
- Letter to Clark Ashton Smith, July 18, 1930 (2017)
- Letter to Clark Ashton Smith, July 24, 1924 (2017)
- Letter to Clark Ashton Smith, July 29, 1929 (2017)
- Letter to Clark Ashton Smith, July 30, 1923 (2017)
- Letter to Clark Ashton Smith, June 11, 1923 (2017)
- Letter to Clark Ashton Smith, June 17, 1926 (2017)
- Letter to Clark Ashton Smith, June 23, 1930 (2017)
- Letter to Clark Ashton Smith, June 24[, 1927] (2017)
- Letter to Clark Ashton Smith, June 25, 1931 (2017)
- Letter to Clark Ashton Smith, June 3d[, 1927] (2017)
- Letter to Clark Ashton Smith, June 5[, 1929] (2017)
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Letter to Clark Ashton Smith, Jungle of Kled—Hour That the Monolith Turns on Its Carven Onyx Pedestal. [c. late May/early June 1934]?Letter to Clark Ashton Smith, Jungle of Kled-Hour That the Monolith Turns on Its Carven Onyx Pedestal. [c. late May/early June 1934](2017)
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Letter to Clark Ashton Smith, Jungle of the Obscene Fungi Below the Belt of Saturn— Hour of the Casting of the Shadow [12 May 1931]?Letter to Clark Ashton Smith, Jungle of the Obscene Fungi Below the Belt of Saturn- Hour of the Casting of the Shadow [12 May 1931](2017)
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Letter to Clark Ashton Smith, Jungle Temple of Krang— Hour of the Stirring in the Lake [25 July 1935]?Letter to Clark Ashton Smith, Jungle Temple of Krang- Hour of the Stirring in the Lake [25 July 1935](2017)
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Letter to Clark Ashton Smith, Kadath in the Cold Waste— Hour of the Lighting of the Beacon in the Tower of the Yellow-Masked Entity Tphnglaaa. [14 August 1931]?Letter to Clark Ashton Smith, Kadath in the Cold Waste- Hour of the Lighting of the Beacon in the Tower of the Yellow-Masked Entity Tphnglaaa. [14 August 1931](2017)
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Letter to Clark Ashton Smith, Labyrinth of Zhrr— Hour of the Shrieking [c. 8—11 January 1934]?Letter to Clark Ashton Smith, Labyrinth of Zhrr- Hour of the Shrieking [c. 8-11 January 1934](2017)
- Letter to Clark Ashton Smith, Leaden Hillside of Pnapf on the Green-Litten Planet Hchah in Dimension N; Hour of the Voice & Vapour From the Bottomless Cleft. [2 March 1932] (2017)
- Letter to Clark Ashton Smith, Many-Coulumned Arcades of Weed-Grown Y'ha-Nthlai, in the Hour of the Unseen Howling. [early December 1931] (2017)
- Letter to Clark Ashton Smith, March 13[, 1928] (2017)
- Letter to Clark Ashton Smith, March 14, 1925 (2017)
- Letter to Clark Ashton Smith, March 15, 1927 (2017)
- Letter to Clark Ashton Smith, March 2, 1932 (1971)
- Letter to Clark Ashton Smith, March 22[, 1929] (2017)
- Letter to Clark Ashton Smith, March 24, 1927 (2017)
- Letter to Clark Ashton Smith, March 25, 1923 (2017)
- Letter to Clark Ashton Smith, March 26[, 1926] (2017)
- Letter to Clark Ashton Smith, May 12, 1927 (2017)
- Letter to Clark Ashton Smith, May 14, 1926 (2017)
- Letter to Clark Ashton Smith, May 29, 1930 (2017)
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Letter to Clark Ashton Smith, Megalithic Ruins Beneath the Desert —Hour of the Chill Wind from the Black Trap-Door. [Postmarked 26 March 1935]?Letter to Clark Ashton Smith, Megalithic Ruins Beneath the Desert -Hour of the Chill Wind from the Black Trap-Door. [Postmarked 26 March 1935](2017)
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Letter to Clark Ashton Smith, Memory-Vortex of Zith— Opening of the Bronze Gate in the Unscalable Basalt Cliff of Gnaa. [2 February 1933]?Letter to Clark Ashton Smith, Memory-Vortex of Zith- Opening of the Bronze Gate in the Unscalable Basalt Cliff of Gnaa. [2 February 1933](2017)
- Letter to Clark Ashton Smith, Month of the Hornéd Ram [c. 19 March 1930] (2017)
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Letter to Clark Ashton Smith, Moonless Moor of Shaggai— at the Tolling of the Cracked Bell in the Dark Tower [23 March 1936]?Letter to Clark Ashton Smith, Moonless Moor of Shaggai- at the Tolling of the Cracked Bell in the Dark Tower [23 March 1936](2017)
- Letter to Clark Ashton Smith, Nameless Ruins of Iath, Hour of the Lambent Glow Around the Sealed Tower. [12 July 1933] (2017)
- Letter to Clark Ashton Smith, Necropolis of Leth-yoddim: Before the Impact of the Moon-Rays on the Bronze Door in the Hillside. [Postmarked 21 March 1932] (2017)
- Letter to Clark Ashton Smith, Ninth Vacum of Negative Matter, in the Black Nebula of Ylghuh, beyond the third Cluster of Space-Time Continua. [7 November 1930] (2017)
- Letter to Clark Ashton Smith, November 12, 1922 (2017)
- Letter to Clark Ashton Smith, Novr. 15, 1928 (2017)
- Letter to Clark Ashton Smith, Novr. 16, 1926 (2017)
- Letter to Clark Ashton Smith, Novr. 24, 1925 (2017)
- Letter to Clark Ashton Smith, Novr. 27[, 1927] (2017)
- Letter to Clark Ashton Smith, Novr. 4, 1925 (2017)
- Letter to Clark Ashton Smith, Oct. 1, 1927 (2017)
- Letter to Clark Ashton Smith, Oct. 15, 1927 (2017)
- Letter to Clark Ashton Smith, October 29, 1929 (2017)
- Letter to Clark Ashton Smith, Octr 17, 1923 (2017)
- Letter to Clark Ashton Smith, Octr 29 [1930] (2017)
- Letter to Clark Ashton Smith, Octr 5, 1922 (2017)
- Letter to Clark Ashton Smith, Octr. 12, 1926 (2017)
- Letter to Clark Ashton Smith, Octr. 27[, 1928] (2017)
- Letter to Clark Ashton Smith, Octr. 29, 1926 (2017)
- Letter to Clark Ashton Smith, Octr. 9, 1925 (2017)
-
Letter to Clark Ashton Smith, Onyx Sea-Cliffs of Kho— Hour When Low Tide Bates That Daemon-Carvers Reef Wherefrom Men Avert Their Glance... [14 June 1933]?Letter to Clark Ashton Smith, Onyx Sea-Cliffs of Kho- Hour When Low Tide Bates That Daemon-Carvers Reef Wherefrom Men Avert Their Glance... [14 June 1933](2017)
- Letter to Clark Ashton Smith, Peak of Panaq[?], with a Distant View of the Stone Tower on Abhorrèd Leng. Hour of the Pallid, Ominous Beacon-Light. [8 October 1932] (2017)
- Letter to Clark Ashton Smith, Pinnacle of Kadath in the Cold Waste. Hour of the Flapping of Unseen Wings. [21 December 1932] (2017)
-
Letter to Clark Ashton Smith, Pinnacle of Zith —Hour of the Upward Lightning [Postmarked 5 February 1937]?Letter to Clark Ashton Smith, Pinnacle of Zith -Hour of the Upward Lightning [Postmarked 5 February 1937](2017)
-
Letter to Clark Ashton Smith, Pit of Yub— Hour of the Squirmers' Emergence from the Walls [13 November 1933]?Letter to Clark Ashton Smith, Pit of Yub- Hour of the Squirmers' Emergence from the Walls [13 November 1933](2017)
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Letter to Clark Ashton Smith, Pnath—When the Spreading, Serrate Shadow Darkens the Grey Sky Above the Black, Ragged Peaks of Thok. [15 April 1932]?Letter to Clark Ashton Smith, Pnath-When the Spreading, Serrate Shadow Darkens the Grey Sky Above the Black, Ragged Peaks of Thok. [15 April 1932](2017)
- Letter to Clark Ashton Smith, Postmarked Providence R.I. 5 December 1922 (2017)
- Letter to Clark Ashton Smith, Precipice of N'Ho Above the Nameless Abysm. Hour of the Murmer from Below. [c. 26 July 1932] (2017)
- Letter to Clark Ashton Smith, Primal Basalt Bridge Over the Black & Oily River Gnar. Time of the Bulbous Shape's Passage Up-Stream. [3 October 1933] (2017)
- Letter to Clark Ashton Smith, Rock Desert of Ying, on Trans-Galactic Yaddith: Before the Bronze Cliff-Gate Around Which Lie the Foetid Bodies & Immemorial Bones of Nameless Beasts. Hour of the Opening of the Gate. [11 March 1932] (2017)
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Letter to Clark Ashton Smith, Ruins of the Primal Citadel —Hour of the Sentient Wind [30 January 1935]?Letter to Clark Ashton Smith, Ruins of the Primal Citadel -Hour of the Sentient Wind [30 January 1935](2017)
- Letter to Clark Ashton Smith, Septr 27, 1922 (2017)
- Letter to Clark Ashton Smith, Septr 5, 1927 (2017)
- Letter to Clark Ashton Smith, Septr. 20, 1925 (2017)
- Letter to Clark Ashton Smith, Septr. 20, 1929 (2017)
- Letter to Clark Ashton Smith, Shores of the Black Lake T'lai: Time of Moonless Tide & the Rising of ___ ___. [c. 10 February 1933] (2017)
- Letter to Clark Ashton Smith, Shrine of Hyl-Gho on the Smoking Peak. Hour of the Nameless Chanting Below. [7 January 1933] (2017)
- Letter to Clark Ashton Smith, Shrine of Nug, in the Temple of Infra-Red Vapour on the Doomed Nebula Zlykariob, in the Hour of the Torturing of the Worm Bgnghaa-Ythn-Yaddith [c. 18 January 1931] (2017)
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Letter to Clark Ashton Smith, Shumath-Ghun—Hour of the Flight of the Bat Toward the Black Nebula. [early August 1932]?Letter to Clark Ashton Smith, Shumath-Ghun-Hour of the Flight of the Bat Toward the Black Nebula. [early August 1932](2017)
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Letter to Clark Ashton Smith, Slope of Forgotten Gna-Haggosh in the Great White South: Day of the Reopening of the Gate from Dimension √µγ. [6 May 1932]?Letter to Clark Ashton Smith, Slope of Forgotten Gna-Haggosh in the Great White South: Day of the Reopening of the Gate from Dimension square root mu gamma [6 May 1932](2017)
-
Letter to Clark Ashton Smith, Slope of Inaccessible Ngranek —Hour of the Night-Gaunts' Flight [23 October 1935]?Letter to Clark Ashton Smith, Slope of Inaccessible Ngranek -Hour of the Night-Gaunts' Flight [23 October 1935](2017)
-
Letter to Clark Ashton Smith, Summit of Mt. Ngranek —Hour of the Fog with the Eyes [11 April 1935]?Letter to Clark Ashton Smith, Summit of Mt. Ngranek -Hour of the Fog with the Eyes [11 April 1935](2017)
- Letter to Clark Ashton Smith, Thursday [(probably 3) October, 1929] (2017)
- Letter to Clark Ashton Smith, Thursday [28 August 1930] (2017)
- Letter to Clark Ashton Smith, Thursday, June 7[, 1928] (2017)
-
Letter to Clark Ashton Smith, Tower of Gibbelins —Hour of the Shrieking [25 June 1934]?Letter to Clark Ashton Smith, Tower of Gibbelins -Hour of the Shrieking [25 June 1934](2017)
-
Letter to Clark Ashton Smith, Tower of Narghan in Pnath —Hour When the Dogs Bay at the Opening of the Topmost Circular Window [January 1932]?Letter to Clark Ashton Smith, Tower of Narghan in Pnath -Hour When the Dogs Bay at the Opening of the Topmost Circular Window [January 1932](2017)
- Letter to Clark Ashton Smith, Tower of the Broken Angle on the Night-Side of Yuggoth: Hour of the Triple Signal from the Other Dimension. [26 March 1932] (2017)
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Letter to Clark Ashton Smith, Tropic Jungle of Kham —Hour That the Moon Strikes the Leprous Crystal [Postmarked Daytona Beach, Florida 16 June 1935]?Letter to Clark Ashton Smith, Tropic Jungle of Kham -Hour That the Moon Strikes the Leprous Crystal [Postmarked Daytona Beach, Florida 16 June 1935](2017)
- Letter to Clark Ashton Smith, Trw's-Daag [14 October 1930] (2017)
- Letter to Clark Ashton Smith, Tuesday [19 November, 1929] (2017)
- Letter to Clark Ashton Smith, Twisting-Hour of the Seven-Dimensional Force Units in the Reverse-Angled Continuum Beyond the Universes of Matter, Black Light, & Asymmetrical Etheric Polarity. [Postmarked 27 December 1931] (2017)
- Letter to Clark Ashton Smith, Vale of Pnath: Hour of the Opening of The Under Burrows [26 March 1931] (2017)
-
Letter to Clark Ashton Smith, Vaults of Zin—Time of the Metallic Clang from Beneath the Sealed Trap Door. [20 April 1932]?Letter to Clark Ashton Smith, Vaults of Zin-Time of the Metallic Clang from Beneath the Sealed Trap Door. [20 April 1932](2017)
- Letter to Clark Ashton Smith, Viscous Vortex of S'llhaa Beyond the Rim. Hour of the Shaping of the Nucleus. [Postmarked 18 February 1932] (2017)
- Letter to Clark Ashton Smith, Vortex of Slth-Kgnr on the Liquid Planet Nrun in the Central Galaxy of the Sixth Dimension Beyond the City of the Singing Flame. Moment of the Up-Surge to Meet the Rising of the Black Satellite. [23 August 1931] (2017)
- Letter to Clark Ashton Smith, Window of Dread in the Oddly Slanted Turret Atop the Castle d'Affres on Mont des Ombres Betwixt Epouvance & Averoigne: Hour of the Opening, & of the Summoning of Something from the Void Beyond... [18 November 1932] (2017)
-
Letter to Clark Ashton Smith, Windowless Tower of Ilat on the Slope of Yoonai—Hour of the Wave from Outside & the Humming Within. [Postmarked 28 October 1932]?Letter to Clark Ashton Smith, Windowless Tower of Ilat on the Slope of Yoonai-Hour of the Wave from Outside & the Humming Within. [Postmarked 28 October 1932](2017)
- Letter to Clark Ashton Smith, Woden's Day [10 September 1930] (2017)
-
Letter to Clark Ashton Smith, Wood of the Gangrenous Fungi —Hour of the Monstrous Multiplication [Postmarked 18 November 1933]?Letter to Clark Ashton Smith, Wood of the Gangrenous Fungi -Hour of the Monstrous Multiplication [Postmarked 18 November 1933](2017)
-
Letter to Clark Ashton Smith, Yoth-Tlaggon—at the Crimson Spring. Hour of Amorphous Reflection. [4 April 1932]?Letter to Clark Ashton Smith, Yoth-Tlaggon-at the Crimson Spring. Hour of Amorphous Reflection. [4 April 1932](2017)
- Letter to Donald A. Wollheim (1935)
- Letter to Donald Wollheim, date unknown ("Dear Wollheim: Here is something which Two-Gun Bob...") (1953)
- Letter to Donald Wollheim, date unknown ("Dear Wollheim: Here is something which Two-Gun Bob...") (1953) with HPL
- Letter to Edwin Hadley Smith (1941)
- Letter to F. Lee Baldwin (1943)
- Letter to Frank Belknap Long (1968)
- Letter to Myrta Alice Little (May 17, 1921) (1992)
- Letter to Robert Bloch, April 22, 1933 (1993)
- Letter to Robert Bloch, April 27, 1933 (1993)
- Letter to Robert Bloch, April 30 1935 (1993)
- Letter to Robert Bloch, April 9, 1934 (1993)
- Letter to Robert Bloch, August 11, 1934 (1993)
- Letter to Robert Bloch, August 12, 1936 (1993)
- Letter to Robert Bloch, August 31, 1936 (1993)
- Letter to Robert Bloch, c. August 19-20, 1933 (1993)
- Letter to Robert Bloch, c. August 1934 (1993)
- Letter to Robert Bloch, c. December 6, 1933 (1993)
- Letter to Robert Bloch, c. early February 1935 (1993)
- Letter to Robert Bloch, c. February-March 1935 (1993)
- Letter to Robert Bloch, c. late June, 1933 (1993)
- Letter to Robert Bloch, c. late October 1933 (1993)
- Letter to Robert Bloch, c. mid-April 1935 (1993)
- Letter to Robert Bloch, c. mid-July 1935 (1993)
- Letter to Robert Bloch, c. mid-September 1934 (1993)
- Letter to Robert Bloch, Dec. 3, 1936 (1993)
- Letter to Robert Bloch, December 15, 1933 (1993)
- Letter to Robert Bloch, December 22, 1934 (1993)
- Letter to Robert Bloch, December 28, 1935 (1993)
- Letter to Robert Bloch, December 4, 1935 (1993)
- Letter to Robert Bloch, early June 1935 (1993)
- Letter to Robert Bloch, early October 1935 (1993)
- Letter to Robert Bloch, early to mid July 1933 (1993)
- Letter to Robert Bloch, early to mid-November 1934 (1993)
- Letter to Robert Bloch, February 2, 1934 (1993)
- Letter to Robert Bloch, January 25, 1937 (1993)
- Letter to Robert Bloch, Jany. 7, 1937 (1993)
- Letter to Robert Bloch, July 14, 1934 (1993)
- Letter to Robert Bloch, July 21, 1934 (1993)
- Letter to Robert Bloch, July 22, 1933 (1993)
- Letter to Robert Bloch, June 1, 1933 (1993)
- Letter to Robert Bloch, June 21, 1933 (1993)
- Letter to Robert Bloch, June 8, 1934 (1993)
- Letter to Robert Bloch, June 9, 1933 (1993)
- Letter to Robert Bloch, late January 1935 (1993)
- Letter to Robert Bloch, late July 1933 (1993)
- Letter to Robert Bloch, late June 1936 (1993)
- Letter to Robert Bloch, late May 1933 (1993)
- Letter to Robert Bloch, late October 1934 (1993)
- Letter to Robert Bloch, March 14, 1936 (1993)
- Letter to Robert Bloch, March 1935 (1993)
- Letter to Robert Bloch, mid to late June 1935 (1993)
- Letter to Robert Bloch, mid-March 1935 (1993)
- Letter to Robert Bloch, mid-May 1936 (1993)
- Letter to Robert Bloch, November 1933 (1993)
- Letter to Robert Bloch, November 2, 1935 (1993)
- Letter to Robert Bloch, Oct. 15, 1936 (1993)
- Letter to Robert Bloch, postmarked October 18, 1934 (1993)
- Letter to Robert Bloch, September 15, 1933 (1993)
- Letter to Robert Bloch, September 19, 1935 (1993)
- Letter to Robert Bloch, September 25, 1933 (1993)
- Letter to Robert E. Howard, April 3, 1934 ("As I said on the postcard, I was....") (2009)
- Letter to Robert E. Howard, August 14, 1930 ("...Concerning early Europe and the 'little people'...:) (2009)
- Letter to Robert E. Howard, August 16, 1932 ("I cannot even begin to compete with your...") (2009)
- Letter to Robert E. Howard, August 6, 1931 ("I trust you have not wholly given me up for lost...") (2009)
-
Letter to Robert E. Howard, August 7, 1935 ("...Now as to our controversies—for once, I am glad...")?Letter to Robert E. Howard, August 7, 1935 ("...Now as to our controversies-for once, I am glad...")(2009)
- Letter to Robert E. Howard, December 26, 1931 ("Your interesting letter duly arrived...") (2009)
- Letter to Robert E. Howard, January 16, 1932 ("I'm glad my discourse on High and Low German...") (2009)
- Letter to Robert E. Howard, January 21, 1933 ("I duly received your ample and interesting...") (2009)
- Letter to Robert E. Howard, January 30, 1931 ("...Your rattlesnake anecdotes are surely interesting...") (2009)
-
Letter to Robert E. Howard, July 11, 1935 ("...As for international questions —...")?Letter to Robert E. Howard, July 11, 1935 ("...As for international questions -...")(2009)
- Letter to Robert E. Howard, July 20, 1930 ("I was greatly interested in your letter...") (2009)
- Letter to Robert E. Howard, July 24, 1933 ("I was delighted to receive your interesting letter...") (2009)
- Letter to Robert E. Howard, July 25, 1932 ("This reply to your admirably interesting...") (2009)
- Letter to Robert E. Howard, July 27, 1934 ("As you know from my card...") (2009)
-
Letter to Robert E. Howard, June 8, 1932 ("Well—I'm writing you from a considerably lesser distance...")?Letter to Robert E. Howard, June 8, 1932 ("Well-I'm writing you from a considerably lesser distance...")(2009)
- Letter to Robert E. Howard, March 25, 1933 ("I digested your extremely interesting letter of...") (2009)
- Letter to Robert E. Howard, May 7, 1932 ("Your interesting letter, the note, the postcard...") (2009)
- Letter to Robert E. Howard, May 7, 1936 ("...As for the good old controversy...") (2009)
- Letter to Robert E. Howard, November 2, 1933 ("...The summer here was cooler than I like...") (2009)
- Letter to Robert E. Howard, November 7-11, 1932 ("Your intensely interesting letter duly arrived, and I have digested it...") (2009)
- Letter to Robert E. Howard, October 3, 1932 ("Your highly interesting letter duly arrived, and I have...") (2009)
- Letter to Robert E. Howard, October 30, 1931 ("...As usual, your Texas reminiscences proved...") (2009)
- Letter to Robert E. Howard, October 4, 1930 ("...I agree with what you say about suggestion...") (2009)
- Letter to Robert E. Howard, September 12, 1931 ("...As for atavism and racial memory...") (2009)
- Letter to the Convention of the National Amateur Press Association (1936)
- Letter to the Editor of Driftwind (1932)
- Letter to the Editor of the All-Story Cavalier (1913)
- Letter to the Editor of the All-Story Weekly (1914)
- Letter to the Editor of the Scientific American (1906)
- Letter to the Editor of Weird Tales (1923)
- Letter to the Editor of Weird Tales (1923)
- Letter to the Editor of Weird Tales (1923)
- Letter to the Editor of Weird Tales (1924)
- Letter to the Editor of Weird Tales (1924)
- Letter to the Editor of Weird Tales (1926)
- Letter to the Editor of Weird Tales (1928)
- Letter to the Editor of Weird Tales (1928)
- Letter to the Editor of Weird Tales (1928)
- Letter to the Editor of Weird Tales (1934)
- Letter to the Editor of Weird Tales (1936)
- Letter to Vincent B. Haggerty (1935)
- Letter to Willis Conover (1936)
- Letter to Willis Conover (1937)
- Letter: H. P. Lovecraft to Clark Ashton Smith, June 23, 1930 (1976)
- Letter: H. P. Lovecraft to E. Hoffmann Price, July 5, 1936 (1970)
- Letters between H. P. Lovecraft and Orville L. Leach (2013)
- Letters to Carl Ferdinand Strauch (2010)
- Letters to Charles D. Hornig (1933)
- Letters to Farnsworth Wright (2014)
- Letters to Fritz and Jonquil Leiber (2003)
- Letters to Jim Blish, William Miller, Jr., and Nils H. Frome (1938)
- Letters to Lee McBride White (2007) with S. T. Joshi and David E. Schultz
- Letters to Marian F. Bonner (2015)
- Letters to the Coryciani (2017)
- Letters to the Editor of the Providence Sunday Journal (1906)
- Letters to Virgil Finlay (1974)
- Lettre au rédacteur en chef d'All Story Weekly [French] (1991) with Howard Phillips Lovecraft
- Lettre au rédacteur en chef de Weird Tales [French] (1991) with Howard Phillips Lovecraft
- Life for Humanity's Sake (1920)
- List of Primary Ideas Motivating Possible Weird Tales (1938)
- Liste des idées de base pouvant servir à des histoires fantastiques [French] (2021) with Howard Phillips Lovecraft
- Literary Composition (1920)
- Looking Backward (1920)
- Looking Backwards (abridged version) (1955)
- Looking Backwards (abridged version) (1955) with Howard Phillips Lovecraft
- Lord Dunsany and His Work (1922)
-
Lord Dunsany et son œuvre?Lord Dunsany et son oeuvre[French] (1991) with Howard Phillips Lovecraft
- Lovecraft on Love (1971)
- Lovecraft on Weird Fiction (1997)
- Lovecraft's Last Letter (1969)
- Lovecraft's Letter on "Adept's Gambit" (Abridged Version: Letter #1) (2019)
- Lovecraft's Letter on "Adept's Gambit" (Abridged Version: Letter #2) (2019)
- Lovecraft's Letter to Adolphe de Castro (1987)
- Lovecraft's Letters on "Adept's Gambit" (abridged version: letter #2) (2019)
- Lovecraft's Letters to Vincent Starrett (1987)
- Lovecrafts Notizen zu "Der Schatten über Innsmouth" [German] (2005) with Howard Phillips Lovecraft
- Lucubrations Lovecraftian (1921)
- Mars est-il un monde habité ? [French] (1992) with Howard Phillips Lovecraft
- May Skies (1917)
- Merlinus Redivivus (1918)
- Merlinus Redivivus [French] (1992) with Howard Phillips Lovecraft
- Metrical Regularity (1915)
- More Chain Lightning (1915)
- Mrs Miniter - Estimates and Recollections (1938)
-
Mrs. Miniter—-Estimates and Recollections?Mrs. Miniter--Estimates and Recollections(1934)
Mrs. Miniter-Estimates and Recollections - Nietzscheism and Realism (1921)
- Nietzscheism and Realism (1952) with Howard Phillips Lovecraft
- Nietzschéisme et réalisme [French] (1992) with Howard Phillips Lovecraft
-
Notas quanto a escrever ficção fantástica?Notas quanto a escrever ficcao fantastica[Portuguese] (2013)
- Notas sobre el arte de escribir cuentos fantásticos [Spanish] (2020)
- Notes and Commentary (Satan's Servants) (1949)
- Notes for "At the Mountains of Madness" (1949)
- Notes for "The Shadow Out of Time" (1949)
- Notes for "The Shadow over Innsmouth" (1949)
- Notes on "Alias Peter Marchall" by A. F. Lorenz (1993)
- Notes on a Nonentity (2010)
- Notes on Interplanetary Fiction (1943)
- Notes on the Writing of Weird Fiction (1944)
- Notes on Weird Fiction (1938)
- Notes on Writing Interplanetary Fiction (1935)
- Notes on Writing Weird Fiction (1937)
- Notes pour Dans l'abîme du temps [French] (1991) with Howard Phillips Lovecraft
- Notes pour Le cauchemar d'Innsmouth [French] (1991) with Howard Phillips Lovecraft
- Notes pour Les Montagnes hallucinées [French] (1991) with Howard Phillips Lovecraft
- Notes sur l'écriture d'histoires fantastiques [French] (2021) with Howard Phillips Lovecraft
- Notes sur l'écriture de la fiction surnaturelle [French] (2015)
- Notes sur la littérature fantastique [French] (2021) with Howard Phillips Lovecraft
- Notes to "Medusa's Coil" (2012)
- Notes to "The Challenge From Beyond" (1984)
- November Skies (1915)
- O terror sobrenatural na literatura [Portuguese] (2006)
- Observations on Several Parts of America (1928)
- Observations on Several Parts of America (1928) with H. Lovecraft
- Observations on Several Parts of North America (1944)
- Old England and the "Hyphen" (1916)
- On "Adept's Gambit" (2014)
- Ovid's Metamorphoses (1984)
- Parla Lo'v Cr-a'f: un bozzetto autobiografico [Italian] (2013)
- Poems Not in The Ancient Track (2009)
- Poesy (1918)
- Poetry and the Artistic Ideal (1943)
- Postcard to Charles D. Hornig (1987)
- Postcard to Robert E. Howard, [c. January 2, 1932] ("Behold the neo-Georgian splendors...") (2009) with W. Paul Cook
- Postcard to Robert E. Howard, [c. May 1931] ("Well- I've struck your ancient Spanish country at last...") (2009)
- Postcard to Robert E. Howard, [c. mid-October 1931] ("Here's a new tale which Talman asked me...") (2009)
- Postcard to Robert E. Howard, [No postmark; enclosed with letter?], c. May 1934 ("Hail, Conan! 'Queen of the Black Coast'...") (2009)
- Postcard to Robert E. Howard, April 25, 1934 ("Greetings from my favorite town!...) (2009)
- Postcard to Robert E. Howard, August 21, 1932 ("Just recd. your note. Here's another Newport view...") (2009)
- Postcard to Robert E. Howard, August 24, 1931 ("New England's oldest!...") (2009)
- Postcard to Robert E. Howard, January 26, 1932 ("Thanks for the final Thevenin article...") (2009)
- Postcard to Robert E. Howard, January 9, 1932 ("Thanks tremendously for the varied material...") (2009)
- Postcard to Robert E. Howard, June 14, 1932 ("Thanks profoundly for our unexpected & happily inspired...") (2009)
- Postcard to Robert E. Howard, June 21, 1932 ("Greetings from an old Confederate capital...") (2009)
- Postcard to Robert E. Howard, no postmark ("Old Salem with its special memories...") (2009)
- Postcard to Robert E. Howard, November 13, 1932 ("Thanks exceedingly for the very interesting cutting...") (2009)
- Postcard to Robert E. Howard, October 15, 1932 ("Thanks prodigiously for the splendid set...") (2009)
- Postcard to Robert E. Howard, postmarked August 12, 1935 ("______ of the Panhandle! Hope you're...") (2009)
- Postcard to Robert E. Howard, postmarked August 19, 1935 ("Thanks abundantly for the fress batch of...") (2009)
- Postcard to Robert E. Howard, postmarked August 20, 1935 ("On the road at last! The Barlows...") (2009)
- Postcard to Robert E. Howard, postmarked August 27, 1935 ("Greetings from ancient Charleston!...") (2009)
- Postcard to Robert E. Howard, September 1, 1930 ("This place surpasses all my expectations...") (2009)
- Postcard to Robert E. Howard, September 14, 1932 ("Greetings from a conclave of spectre-chasers!...") (2009) with Donald Wandrei
- Postcard to Robert E. Howard, September 22, 1932 ("Many thanks for the interesting issue...") (2009)
- Postcart to Robert E. Howard, postmarked October 25, 1933 ("Abundant & prodigious thanks for the marvellous...") (2009)
- Preface (A Dim-Remembered Story) (1980)
- Preface to Old World Footprints (1928)
- Preface to White Fire (1979)
- Presentazione (La casa sull'abisso) [Italian] (1996)
- Presentazione (La casa sull'abisso) [Italian] (1996) with Howard Phillips Lovecraft
- Quelques commentaires sur la fiction interplanétaire [French] (1991) with Howard Phillips Lovecraft
- Quelques origines du royaume des fées [French] (1991) with Howard Phillips Lovecraft
- Revolutionary Mythology (1916)
- Revolutionary Mythology (1953) with Howard Phillips Lovecraft
- Robert Ervin Howard : 1906-1936 [French] (1991) with Howard Phillips Lovecraft
- Robert Ervin Howard: 1906-1936 (1936)
- Robert Ervin Howard: A Memoriam (1946)
- Rudis Indigestaque Moles (1923)
- Rêves et chimères [French] (1992) with Howard Phillips Lovecraft
- Science versus Charlatanry (1914)
- Sleepy Hollow To-day (1930)
- Some Additional Notes on Writing Weird Fiction (2020)
- Some Backgrounds of Fairyland (1944)
- Some Causes of Self-Immolation (1931)
- Some Causes of Self-Immolation: Motives for Voluntary Self-Subjugation to Unpleasant Conditions by Human Beings (1931) with L. Theoboald, Jr.
- Some Current Motives and Practices (1936)
- Some Dutch Footprints in New England (1933)
- Some Notes on a Nonentity (1995)
- Some Notes on Interplanetary Fiction (1935)
- Some Repetitions on the Times (1933)
- Some Self-Criticism by H. P. Lovecraft (2012)
- Something About Cats (1937)
- Stammbaum der Älteren Rassen [German] (2017)
- Story-Writing: A Letter from H. P. Lovecraft (1975)
- Story-Writing: A Letter from HPL (1935)
- Sueños y fragmentos [Spanish] (2010)
- Suggestions for a Reading Guide (1966)
- Suggestions for Writing Story (1938)
- Suggestions pour la rédaction du récit [French] (2021) with Howard Phillips Lovecraft
- Suggestions pour un guide du lecteur [French] (1991) with Howard Phillips Lovecraft
- Supernatural Horror in Literature (1927)
- Supernatural Horror in Literature (1945) with Howard Phillips Lovecraft
- Supernatural Horror in Literature (excerpt) (1927)
- Supernatural Horror in Literature (Part 1 of 18) (1927)
- Supernatural Horror in Literature (Part 10 of 18) (1927)
- Supernatural Horror in Literature (Part 11 of 18) (1927)
- Supernatural Horror in Literature (Part 12 of 18) (1927)
- Supernatural Horror in Literature (Part 13 of 18) (1927)
- Supernatural Horror in Literature (Part 14 of 18) (1927)
- Supernatural Horror in Literature (Part 15 of 18) (1927)
- Supernatural Horror in Literature (Part 16 of 18) (1927)
- Supernatural Horror in Literature (Part 17 of 18) (1927)
- Supernatural Horror in Literature (Part 2 of 18) (1927)
- Supernatural Horror in Literature (Part 3 of 18) (1927)
- Supernatural Horror in Literature (Part 4 of 18) (1927)
- Supernatural Horror in Literature (Part 5 of 18) (1927)
- Supernatural Horror in Literature (Part 6 of 18) (1927)
- Supernatural Horror in Literature (Part 7 of 18) (1927)
- Supernatural Horror in Literature (Part 8 of 18) (1927)
- Supernatural Horror in Literature (Part 9 of 18) (1927)
- Sur l'authenticité du Necronomicon [French] (1991)
- Sur l'authenticité du Necronomicon [French] (1991) with Howard Phillips Lovecraft
- Sur le catholicisme [French] (1992)
- Sur le catholicisme [French] (1992) with Howard Phillips Lovecraft
- Sur les traces de Poe [French] (1991) with Howard Phillips Lovecraft
- Symphony and Stress (1915)
- Sélection de lettres entre H.P. Lovecraft et C.A. Smith [French] (2021) with Clark Ashton Smith
- Sélection de lettres entre H.P. Lovecraft et C.A. Smith [French] (2021) with Howard Phillips Lovecraft and Clark Ashton Smith
- Taccuini 1919-1935 [Italian] (2013)
- Textual Notes (1997)
- The Allowable Rhyme (1915)
- The Beating of Black Wings: Supernatural Horror in Literature and the Fiction of Edgar Allan Poe (1981)
- The Brief Autobiography of an Inconsequential Scribbler (1919)
- The Brief Autobiography of an Inconsequential Scribbler (1953) with Howard Phillips Lovecraft
- The Case for Classicism (1919)
- The Case for Classicism: A Reply to Prof. Philip B. McDonald (1919)
- The Commonplace Book (1938)
- The Commonplace Book of H. P. Lovecraft (1959)
- The Cosmos & Religion (1975)
- The Crime of the Century (1915)
- The Defence Remains Open (1921)
- The Defence Reopens! (1921)
- The Despised Pastoral (1918)
- The Dignity in Journalism (1981)
- The Dignity of Journalism (1915)
- The Earth Not Hollow (1906)
- The Fall of Astrology (1914)
- The Haverhill Convention (1921)
- The Homes and Shrines of Poe (1934)
- The Incantation from Red Hook (1975)
- The League (1919)
- The Literature of Rome (1918)
- The Loyal Coalition (1921)
- The Materialist Today (1926)
- The Old Brick Row (1929)
- The Omnipresent Philistine (1924)
- The Poem of Ulysses (1982)
- The Poetry of Lilian Middleton (1922)
- The Professional Incubus (1924)
- The Professional Incubus (1955) with Howard Phillips Lovecraft
- The Renaissance of Manhood (1915)
- The Simple Spelling Mania (1918)
- The Simple Spelling Mania (1955) with Howard Phillips Lovecraft
- The Supernatural and Edgar Allan Poe (1927)
- The Symphonic Ideal (1916)
- The Symphonic Ideal (1955) with Howard Phillips Lovecraft
- The Trip of Theobald (1927)
- The Trip of Theobald (1953) with Howard Phillips Lovecraft
- The Truth About Mars (1917)
- The Unknown City in the Ocean (1934)
- The Vers Libre Epidemic (1917)
- The Weird Work of William Hope Hodgson (1937)
- The Work of Frank Belknap Long, Jr. (1924)
- Time and Space (1918)
- To Edwin Baird (May, 1923) (1923)
- To Edwin Baird (November, 1923) (1923)
- To Nils H. Frome (1937)
- To The All-Story Weekly (1914)
- Trans-Neptunian Planets (1906)
- Travels in the Provinces of America (1929)
- Travels in the Provinces of America (1929) with H. Lovecraft
- Trimmings (1919)
- Two Comments (1944)
- Two Letters from Lovecraft (1989)
- Two Letters to the Editor of the Argosy (1914)
- Types d'histoires fantastiques [French] (2021) with Howard Phillips Lovecraft
- Types of Weird Story (1938)
- United Amateur Press Association: Exponent of Amateur Journalism (1916)
- Vermont--A First Impression (1928)
- Vermont: A First Impression (1928)
-
Vermont—A First Impression?Vermont-A First Impression(1995)
- Ward Phillips Replies (1918)
- Ward Phillips Replies (1955) with Howard Phillips Lovecraft
- Weird Story Plots (2020)
- What Amateurdom and I have Done for Each Other (1921)
- What Belongs in Verse (1935)
- What Belongs in Verse (1935) with Howard P. Lovecraft
- Winifred Virginia Jackson : une poétesse "différente" [French] (1991) with Howard Phillips Lovecraft
- Winifred Virginia Jackson: A "Different" Poetess. (1921)
- Witch House (1965)
- Within the Gates (1921)
- Wohnsitze und Gedenkstätten Poes [German] (2009) with Howard Phillips Lovecraft
- À la racine [French] (1992) with Howard Phillips Lovecraft
- Éléments d'une histoire fantastique [French] (2021) with Howard Phillips Lovecraft
- Épouvante et surnaturel en littérature [French] (2021) with Howard Phillips Lovecraft
-
Γάτες και Σκύλοι?Yates kai Skύloi[Greek] (2012)
Yates kai Skuloi -
В памет на Робърт Ъруин Хауърд?V pamet na Robart Aruin Hauard[Bulgarian] (1996) withХауърд Филипс Лъвкрафт?Hauard Filips Lavkraft
- Autobiographical Writings (1992)
- H. P. Lovecraft: Letters to Henry Kuttner (1990)
- Lovecraft Studies, #25 Fall 1991 (1991)
- A Description of the Town of Quebeck, in New Fance, Lately added to His Britannick Majesty's Dominions (1976)
- A Description of the Town of Quebeck, in New France, Lately added to His Britannick Majesty's Dominions (1976) with H. Lovecraft
- An Old One (2014)
- An Old One (2014) with Howard Phillips Lovecraft
- Being from At the Mountains of Madness (1949)
- Charleston Antiquities (1995)
- Cthulhu (1999)
- Cthulhu as drawn by H. P. Lovecraft (1996)
- Design for My Gravestone (1949)
- Drawing of Cthulhu (2023)
- Drawing of Cthulhu (2023)
- Drawing of Lovecraft's Birthplace (1944)
- Drawings for Charleston Letter (1944)
- Jupiter, as Seen Near Opposition (1904)
- Letter from Lovecraft to Finlay dated November 30, 1936 [Japanese] (2016)
-
Letter to Clark Ashton Smith, At the Monolith on the Mound —Hour That the Dogs Howl [Postmarked 11 February 1934]?Letter to Clark Ashton Smith, At the Monolith on the Mound -Hour That the Dogs Howl [Postmarked 11 February 1934](2017)
-
Letter to Clark Ashton Smith, Bottomless Well of Yeguggon— Hour That the Snout Appears [20 June 1936]?Letter to Clark Ashton Smith, Bottomless Well of Yeguggon- Hour That the Snout Appears [20 June 1936](2017)
-
Letter to Clark Ashton Smith, Daemon-Curst Wood of Yoth— Hour That the Livid, Fungous Boughs Sway Against the Muttering Wind [22 October 1933]?Letter to Clark Ashton Smith, Daemon-Curst Wood of Yoth- Hour That the Livid, Fungous Boughs Sway Against the Muttering Wind [22 October 1933](2017)
-
Letter to Clark Ashton Smith, Field of the Ultra-Spectral Rays —Hour of the Spiral Wind from Nith [29 June 1933]?Letter to Clark Ashton Smith, Field of the Ultra-Spectral Rays -Hour of the Spiral Wind from Nith [29 June 1933](2017)
-
Letter to Clark Ashton Smith, From the 66th Vortex of the New Space-Time Abyss— Hour of the Faint Scratching. [31 May 1933]?Letter to Clark Ashton Smith, From the 66th Vortex of the New Space-Time Abyss- Hour of the Faint Scratching. [31 May 1933](2017)
- Letter to Clark Ashton Smith, July 30, 1923 (2017)
- Letter to Clark Ashton Smith, Octr 17, 1923 (2017)
-
Letter to Clark Ashton Smith, Tropic Jungle of Kham —Hour That the Moon Strikes the Leprous Crystal [Postmarked Daytona Beach, Florida 16 June 1935]?Letter to Clark Ashton Smith, Tropic Jungle of Kham -Hour That the Moon Strikes the Leprous Crystal [Postmarked Daytona Beach, Florida 16 June 1935](2017)
- Letter to Robert Bloch, late May 1933 (1993)
- Letter to Robert Bloch, mid to late June 1935 (1993)
- Lovecraft As an Illustrator (1943)
- Lovecraft's Drawing of the Wilcox Sculpture (2014) with Howard Phillips Lovecraft
- Lovecraft's Map of Arkham (1993)
- Lovecraft's Plan of Arkham (1944)
- Map of Arkham (2014)
- Map of Arkham (2014) with Howard Phillips Lovecraft
- Map of Innsmouth (2014) with Howard Phillips Lovecraft
- Necropolis of Khar-Zog: Hour of the Piping from Below (1993)
- Pickman's Model (1934)
- Skelos, #3, Fall 2017 (2017)
- Sketch of Statue of Cthulhu (2020)
- Sonia H. Greene, at Magnoia, Massachusetts in 1922 (1985)
- The "Blasted Heath" (2014)
- The "Blasted Heath" (2014) with Howard Phillips Lovecraft
- The Elder God, Cthulhu (2015)
- The Hellish Nether Entity (1993)
- The Shadow over Innsmouth (map) (1949)
- A Strange Story (2004) by Edward Bulwer-Lytton
- Caleb Williams (2004) by William Godwin
- Carnacki, the Ghost-Finder (2004) by William Hope Hodgson
- Cold Harbour (2004) by Francis Brett Young
- Count Magnus (2004) by M. R. James
- Critique de Ebène et Cristal de Clark Ashton Smith [French] (1991) by Clark Ashton Smith (co-reviewed with Howard Phillips Lovecraft)
- Dracula (2004) by Bram Stoker
- Ebony and Crystal (1924) by Clark Ashton Smith
- Ebony and Crystal: Poems in Verse and Prose (1924) by Clark Ashton Smith
- Ethan Brand (2004) by Nathaniel Hawthorne
- Frankenstein, or, The Modern Prometheus (2004) by Mary Shelley
- Incredible Adventures (2004) by Algernon Blackwood
- John Silence, Physician Extraordinary (2004) by Algernon Blackwood
- Ligeia (2004) by Edgar Allan Poe
- Melmoth the Wanderer (2004) by Charles Robert Maturin
- Metzengerstein (2004) by Edgar Allan Poe
- Novel of the White Powder (2004) by Arthur Machen
-
One of Cleopatra's Nights (2004)
by
Théophile Gautier?Theophile Gautier
- Sir Bertrand (2004) by Mrs. Anne Letitia Barbauld
- The Amber Witch (2004) by Wilhelm Meinhold
- The Boats of the Glen Carrig (2004) by William Hope Hodgson
- The Book of Wonder (2004) by Lord Dunsany
- The Castle of Otranto (2004) by Horace Walpole
- The Dark Chamber (2004) by Leonard Cline
- The Death of Halpin Frayser (2004) by Ambrose Bierce
- The Epicurean: A Tale (2004) by Thomas Moore
- The Fall of the House of Usher (2004) by Edgar Allan Poe
- The Ghost Pirates (2004) by William Hope Hodgson
- The Gods of the Mountain (2004) by Lord Dunsany
- The Golem (2004) by Gustav Meyrink
- The Great God Pan (2004) by Arthur Machen
- The History of the Caliph Vathek (2004) by William Beckford
- The Horla (2004) by Guy de Maupassant
- The House of Sounds (2004) by Matthew Phipps Shiel
- The House of the Seven Gables (2004) by Nathaniel Hawthorne
- The House on the Borderland (2004) by William Hope Hodgson
- The King in Yellow (1988) by Robert W. Chambers
- The Marble Faun (2004) by Nathaniel Hawthorne
- The Mark of the Beast (2004) by Rudyard Kipling
- The Middle Toe of the Right Foot (2004) by Ambrose Bierce
- The Monk (2004) by Matthew Gregory Lewis
- The Mysteries of Udolpho (2004) by Ann Radcliffe
- The Night Land (2004) by William Hope Hodgson
- The Novel of the Black Seal (2004) by Arthur Machen
- The Old English Baron (2004) by Clara Reeve
- The Picture of Dorian Gray (2004) by Oscar Wilde
- The Purple Cloud (2004) by Matthew Phipps Shiel
- The Signalman (2004) by Charles Dickens
- The Spook House (2004) by Ambrose Bierce
- The Suitable Surroundings (2004) by Ambrose Bierce
- The Three Imposters (2004) by Arthur Machen
- The Treasure of Abbot Thomas (2004) by M. R. James
- The Turn of the Screw (2004) by Henry James
- The Vampyre (2004) by John William Polidori
- The Wendigo (2004) by Algernon Blackwood
- The White People (2004) by Arthur Machen
- The Willows (2004) by Algernon Blackwood
- The Yellow Sign (2004) by Robert W. Chambers
- Undine (2004) by Frederick, Baron De La Motte Fouqué
- Wieland, or, The Transformation (2004) by Charles Brockden Brown
- Witch Wood (2004) by John Buchan
- Wuthering Heights (2004) by Emily Brontë
- Zanoni (2004) by Edward Bulwer-Lytton
Non-Genre Titles
Magazine Editor Short Fiction Poems
- My Favorite Character (1926)
- Ode for July Fourth, 1917 (1917)
- Department of Public Criticism (United Amateur, July 1917) (1917)
- Editorially (United Amateur, July 1917) (1917)
- Editorially (United Amateur, July 1917) (1917) with uncredited
- President's Message (United Amateur, Sep. 1971) (1917)
- The President's Message (1955) with Howard Phillips Lovecraft