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Nonfiction
- A Delegation of Dragons (2001)
- A Separate Star (1984)
- Frank Kelly Freas: A Portfolio (1957)
- Frank Kelly Freas: As He Sees It (2000) with Laura Brodian Freas
- Frank Kelly Freas: The Art of Science Fiction (1977)
- Myself, More or Less (2002)
- The Astounding Fifties: A Selection from Astounding Science Fiction Magazine (1971)
- Wonderworks (1979) with Polly Freas and Michael Whelan
- Wonderworks (1979) with Kelly Freas and Polly Freas and Michael Whelan
- - - - And Having Writ - - - (1969) with L. Sprague de Camp
- ... Never See His Like Again (1994)
- [John W. Campbell Appreciation] (1971)
- A Matter of Perspective (1971) with Gordon R. Dickson
- A Matter of Perspective (1971) with Gordon R. Dickson
- A Matter of Perspective (1971) with Gordon R. Dickson and Kelly Freas
- A Note from Frank Kelly-Freas (1992)
- A Note from Frank Kelly-Freas (L. Ron Hubbard Presents Writers of the Future, Volume VII) (1991)
- A Separate Universe (2000) with Laura Brodian Freas
- About Kelly and Laura Freas (2000) with Laura Brodian Freas
- About the Illustrators (L. Ron Hubbard Presents Writers of the Future, Volume IV) (1988)
-
According to Hoyle—More or Less?According to Hoyle-More or Less(1984)
- Alfie's Law (1984)
- And the Green Grass Grows... (1977)
- But Some Are More Equal... (1984)
- City Planning and Non-Urban Developments (1984)
- Dance Me a Picture (1984)
- Double Star: Double Jeopardy (1984)
- Editor's Note (Wonderworks) (1979) with Polly Freas
- Editor's Note (Wonderworks) (1979) with Kelly Freas and Polly Freas
- Exploit Me, Please? (1984)
- Faith, Hope, and Paint Remover (1984)
- Frank Kelly Freas (1987)
- Frank Kelly Freas (1987) with Kelly Freas
- Full Many a Gem... (1977)
- Gallery (1984)
- Gallery I (1977)
- Gallery II (1977)
- Getting Into the (Planetary) System (1977)
- Getting Started in Painting (2000) with Laura Brodian Freas
- Gordy Dickson: A Man for All Seasonings (1984)
- Gordy Dickson: A Man for All Seasonings (1984) with Kelly Freas
- I Don't Know What's Good, But ... (2000) with Laura Brodian Freas
-
Illusion in Art — and Life?Illusion in Art - and Life(2000) with Laura Brodian Freas
- Illustrating for the Future (1989)
- Illustrating for the Future (1989) with Frank Kelly-Freas
- In Defence of de Philistines (2000) with Laura Brodian Freas
- In the Beginning ... was Campbell (1980)
-
In the Beginning was—Campbell?In the Beginning was-Campbell(1985)
- Introduction (Frank Kelly Freas: As He Sees It) (2000)
- Introduction (The Astounding Fifties: A Selection from Astounding Science Fiction Magazine) (1971)
- It Makes Me See Red [Whatever THAT is...] (1984)
- L. Ron Hubbard: A Master Storyteller (2003)
- Lament Harlequin (1977)
- LEFT, LEFT, I Hadda Good Brain but It LEFT... (1984)
- Letter (Analog, December 1971) (1971) with Kelly Freas
- Letter (Analog, December 1993) (1993)
- Letter (Analog, December 1993) (1993) with Kelly Freas
- Letter (answer to Mrs. Norma Lovejoy) (Analog, Mid-December 1992) (1992)
- Letter (Locus #392) (1993)
- Letters (Analog, December 1971) (1971)
- Nothing But a Spraygun...with Delusions of Grandeur... (1984)
- Off and Running -- Or Vice Versa (1977)
- On the Painting of Beautiful Women or Ayesha, She Who Must Be Obeyed (2000) with Laura Brodian Freas
- Outraduction (Chroma: The Art of Alex Schomburg) (1986)
- Outraduction (Chroma: The Art of Alex Schomburg) (1986) with Kelly Freas
- Preface (Frank Kelly Freas: As He Sees It) (2000)
- Preface (Master Storyteller: An Illustrated Tour of the Fiction of L. Ron Hubbard) (2003)
- Probability Man (1977)
- Robot on the Rocks (1984)
- Robots and More Robots (2000) with Laura Brodian Freas
- Sailing, Sailing...Over the Spanish Main (1984)
- Second Order Realities (1977)
- Selling Books (2000) with Laura Brodian Freas
- SF Illustration As an Art (1988)
- Six to Go (1971)
- Skylab Patchwork (1973)
- Soapbox (1977)
-
Some of My Best Critics Are Friends — or Vice Versa?Some of My Best Critics Are Friends - or Vice Versa(2000) with Laura Brodian Freas
- The Art of Science Fiction (1990)
- The Complete Astounding Illustrator (1977)
- The Illustrators' Contest (1990)
- The Illustrators' Contest (1990) with Frank Kelly-Freas
- The Role of the Artist in Science Fiction (1976) with Jack Gaughan and Eddie Jones and John Schoenherr and Karel Thole
- The Space Posters (1977)
- The Story Between the Words (1992)
-
The Way I Work — More or Less?The Way I Work - More or Less(2000) with Laura Brodian Freas
- To Come Yet is the Best (1984)
- Well, It's Like This -- (1977)
- What, Art? What Art? (2000) with Laura Brodian Freas
- Where the Possum and Moccasin Play (1984)
-
Who?—and How!?Who?-and How!(1977)
- You Can Work at (Ugh!) Home Too (1977)
- 100 Jahre Weird Tales Jubiläumsedition: 1946 bis 1954 [German] (2023)
- 2001: Das deutsche Science Fiction Magazin 9/10 78 Sept. [German] (1978) with Kelly Freas
- A Delegation of Dragons (2001)
- A Law for the Stars (1976)
- A Law for the Stars (1976) with Kelly Freas
- A Separate Star (1984)
- A Spaceship for the King (1973)
- A Spaceship for the King (1973) with Kelly Freas
- Against the Fall of Night (1953)
- Algol, #33, Winter 1978-1979 (1978)
- Alice, Alice! [Swedish] (1974) with Kelly Freas
- Alien Invasions! The History of Aliens in Pop Culture (2020)
- Aliens and Linguists: Language Study and Science Fiction (1980)
-
Almanah Anticipația 1987?Almanah Anticipatia 1987[Romanian] (1986) with Vincent Di Fate (in error)
Almanah Anticipatsia 1987 - Alton's Unguessable (1970)
- Alton's Unguessable (1970) with Kelly Freas
- Amazing Science Fiction, January 1983 (1983)
- Amazing Science Fiction, May 1983 (1983)
- Amazing Stories, August 1991 (1991)
- Amazing Stories, March 1993 (1993)
- Amazing Stories, May 1992 (1992)
- Amazing Stories, November 1993 (1993)
- Amazing Stories, October 1965 (1965)
- Amazing Stories, October 1965 (1965) with Kelly Freas
- Amazing Stories: The Anthology (1995)
- Analog Science Fact -> Science Fiction, July 1964 (1964)
- Analog Science Fact -> Science Fiction, July 1964 (1964) with Kelly Freas
- Analog Science Fiction -> Science Fact, April 1966 (1966)
- Analog Science Fiction -> Science Fact, April 1966 (1966) with Kelly Freas
- Analog Science Fiction -> Science Fact, April 1968 (1968)
- Analog Science Fiction -> Science Fact, April 1968 (1968) with Kelly Freas
- Analog Science Fiction -> Science Fact, August 1965 (1965)
- Analog Science Fiction -> Science Fact, August 1965 (1965) with Kelly Freas
- Analog Science Fiction -> Science Fact, August 1968 (1968)
- Analog Science Fiction -> Science Fact, August 1968 (1968) with Kelly Freas
- Analog Science Fiction -> Science Fact, December 1965 (1965)
- Analog Science Fiction -> Science Fact, December 1965 (1965) with Kelly Freas
- Analog Science Fiction -> Science Fact, December 1966 (1966)
- Analog Science Fiction -> Science Fact, December 1966 (1966) with Kelly Freas
- Analog Science Fiction -> Science Fact, December 1968 (1968)
- Analog Science Fiction -> Science Fact, December 1968 (1968) with Kelly Freas
- Analog Science Fiction -> Science Fact, February 1966 (1966)
- Analog Science Fiction -> Science Fact, February 1966 (1966) with Kelly Freas
- Analog Science Fiction -> Science Fact, February 1967 (1967)
- Analog Science Fiction -> Science Fact, February 1967 (1967) with Kelly Freas
- Analog Science Fiction -> Science Fact, February 1968 (1968)
- Analog Science Fiction -> Science Fact, February 1968 (1968) with Kelly Freas
- Analog Science Fiction -> Science Fact, January 1966 (1966)
- Analog Science Fiction -> Science Fact, January 1966 (1966) with Kelly Freas
- Analog Science Fiction -> Science Fact, July 1968 (1968)
- Analog Science Fiction -> Science Fact, July 1968 (1968) with Kelly Freas
- Analog Science Fiction -> Science Fact, June 1968 (1968)
- Analog Science Fiction -> Science Fact, June 1968 (1968) with Kelly Freas
- Analog Science Fiction -> Science Fact, March 1968 (1968)
- Analog Science Fiction -> Science Fact, March 1968 (1968) with Kelly Freas
- Analog Science Fiction -> Science Fact, May 1967 (1967)
- Analog Science Fiction -> Science Fact, May 1967 (1967) with Kelly Freas
- Analog Science Fiction -> Science Fact, November 1965 (1965)
- Analog Science Fiction -> Science Fact, November 1965 (1965) with Kelly Freas
- Analog Science Fiction -> Science Fact, November 1966 (1966)
- Analog Science Fiction -> Science Fact, November 1966 (1966) with Kelly Freas
- Analog Science Fiction -> Science Fact, November 1967 (1967)
- Analog Science Fiction -> Science Fact, November 1967 (1967) with Kelly Freas
- Analog Science Fiction -> Science Fact, November 1968 (1968)
- Analog Science Fiction -> Science Fact, November 1968 (1968) with Kelly Freas
- Analog Science Fiction -> Science Fact, October 1968 (1968)
- Analog Science Fiction -> Science Fact, October 1968 (1968) with Kelly Freas
- Analog Science Fiction -> Science Fact, September 1965 (1965)
- Analog Science Fiction -> Science Fact, September 1965 (1965) with Kelly Freas
- Analog Science Fiction -> Science Fact, September 1966 (1966)
- Analog Science Fiction -> Science Fact, September 1966 (1966) with Kelly Freas
- Analog Science Fiction -> Science Fact, September 1967 (1967)
- Analog Science Fiction -> Science Fact, September 1967 (1967) with Kelly Freas
- Analog Science Fiction and Fact, April 1990 (1990)
- Analog Science Fiction and Fact, April 1999 (1999)
- Analog Science Fiction and Fact, April 2002 (2002)
- Analog Science Fiction and Fact, April 2002 (2002) with Kelly Freas
- Analog Science Fiction and Fact, August 1989 (1989)
- Analog Science Fiction and Fact, August 1989 (1989) with Kelly Freas
- Analog Science Fiction and Fact, February 2003 (2003)
- Analog Science Fiction and Fact, February 2003 (2003) with Kelly Freas
- Analog Science Fiction and Fact, January 1990 (1990)
- Analog Science Fiction and Fact, January 2000 (2000)
- Analog Science Fiction and Fact, July 1989 (1989)
- Analog Science Fiction and Fact, July-August 1997 (1997)
- Analog Science Fiction and Fact, July-August 1997 (1997) with Kelly Freas
- Analog Science Fiction and Fact, June 2001 (2001)
- Analog Science Fiction and Fact, Mid-December 1991 (1991)
- Analog Science Fiction and Fact, Mid-December 1991 (1991) with Kelly Freas
- Analog Science Fiction and Fact, October 1990 (1990)
- Analog Science Fiction and Fact, October 1990 (1990) with Kelly Freas
- Analog Science Fiction and Fact, October 2000 (2000)
- Analog Science Fiction and Fact, October 2000 (2000) with Kelly Freas
- Analog Science Fiction and Fact, September 2000 (2000)
- Analog Science Fiction and Fact, September 2000 (2000) with Kelly Freas
- Analog Science Fiction/Science Fact, April 1969 (1969)
- Analog Science Fiction/Science Fact, April 1969 (1969) with Kelly Freas
- Analog Science Fiction/Science Fact, April 1970 (1970)
- Analog Science Fiction/Science Fact, April 1970 (1970) with Kelly Freas
- Analog Science Fiction/Science Fact, April 1971 (1971)
- Analog Science Fiction/Science Fact, April 1972 (1972)
- Analog Science Fiction/Science Fact, April 1973 (1973)
- Analog Science Fiction/Science Fact, April 1973 (1973) with Kelly Freas
- Analog Science Fiction/Science Fact, August 1969 (1969)
- Analog Science Fiction/Science Fact, August 1969 (1969) with Kelly Freas
- Analog Science Fiction/Science Fact, August 1970 (1970)
- Analog Science Fiction/Science Fact, August 1970 (1970) with Kelly Freas
- Analog Science Fiction/Science Fact, August 1971 (1971)
- Analog Science Fiction/Science Fact, August 1971 (1971) with Kelly Freas
- Analog Science Fiction/Science Fact, August 1972 (1972)
- Analog Science Fiction/Science Fact, August 1972 (1972) with Kelly Freas
- Analog Science Fiction/Science Fact, August 1977 (1977)
- Analog Science Fiction/Science Fact, August 1982 (1982)
- Analog Science Fiction/Science Fact, August 1982 (1982) with Kelly Freas
- Analog Science Fiction/Science Fact, December 1969 (1969)
- Analog Science Fiction/Science Fact, December 1970 (1970)
- Analog Science Fiction/Science Fact, December 1970 (1970) with Kelly Freas
- Analog Science Fiction/Science Fact, December 1971 (1971)
- Analog Science Fiction/Science Fact, December 1971 (1971) with Kelly Freas
- Analog Science Fiction/Science Fact, December 1972 (1972)
- Analog Science Fiction/Science Fact, December 1972 (1972) with Kelly Freas
- Analog Science Fiction/Science Fact, February 1969 (1969)
- Analog Science Fiction/Science Fact, February 1969 (1969) with Kelly Freas
- Analog Science Fiction/Science Fact, February 1970 (1970)
- Analog Science Fiction/Science Fact, February 1971 (1971)
- Analog Science Fiction/Science Fact, February 1975 (1975)
- Analog Science Fiction/Science Fact, February 1980 (1980)
- Analog Science Fiction/Science Fact, January 1969 (1969)
- Analog Science Fiction/Science Fact, January 1969 (1969) with Kelly Freas
- Analog Science Fiction/Science Fact, January 1971 (1971)
- Analog Science Fiction/Science Fact, January 1974 (1974)
- Analog Science Fiction/Science Fact, July 1969 (1969)
- Analog Science Fiction/Science Fact, July 1969 (1969) with Kelly Freas
- Analog Science Fiction/Science Fact, July 1971 (1971)
- Analog Science Fiction/Science Fact, July 1971 (1971) with Kelly Freas
- Analog Science Fiction/Science Fact, July 1973 (1973)
- Analog Science Fiction/Science Fact, July 1973 (1973) with Kelly Freas
- Analog Science Fiction/Science Fact, June 1970 (1970)
- Analog Science Fiction/Science Fact, June 1970 (1970) with Kelly Freas
- Analog Science Fiction/Science Fact, June 1971 (1971)
- Analog Science Fiction/Science Fact, June 1971 (1971) with Kelly Freas
- Analog Science Fiction/Science Fact, June 1972 (1972)
- Analog Science Fiction/Science Fact, June 1973 (1973)
- Analog Science Fiction/Science Fact, June 1973 (1973) with Kelly Freas
- Analog Science Fiction/Science Fact, June 1974 (1974)
- Analog Science Fiction/Science Fact, March 1969 (1969)
- Analog Science Fiction/Science Fact, March 1969 (1969) with Kelly Freas
- Analog Science Fiction/Science Fact, March 1970 (1970)
- Analog Science Fiction/Science Fact, March 1970 (1970) with Kelly Freas
- Analog Science Fiction/Science Fact, March 1971 (1971)
- Analog Science Fiction/Science Fact, March 1974 (1974)
- Analog Science Fiction/Science Fact, May 1969 (1969)
- Analog Science Fiction/Science Fact, May 1969 (1969) with Kelly Freas
- Analog Science Fiction/Science Fact, May 1970 (1970)
- Analog Science Fiction/Science Fact, May 1970 (1970) with Kelly Freas
- Analog Science Fiction/Science Fact, May 1971 (1971)
- Analog Science Fiction/Science Fact, May 1971 (1971) with Kelly Freas
- Analog Science Fiction/Science Fact, May 1976 (1976)
- Analog Science Fiction/Science Fact, May 1976 (1976) with Kelly Freas
- Analog Science Fiction/Science Fact, November 1970 (1970)
- Analog Science Fiction/Science Fact, November 1970 (1970) with Kelly Freas
- Analog Science Fiction/Science Fact, November 1973 (1973)
- Analog Science Fiction/Science Fact, October 1969 (1969)
- Analog Science Fiction/Science Fact, October 1970 (1970)
- Analog Science Fiction/Science Fact, October 1970 (1970) with Kelly Freas
- Analog Science Fiction/Science Fact, October 1975 (1975)
- Analog Science Fiction/Science Fact, October 1975 (1975) with Kelly Freas
- Analog Science Fiction/Science Fact, September 1969 (1969)
- Analog Science Fiction/Science Fact, September 1970 (1970)
- Analog Science Fiction/Science Fact, September 1970 (1970) with Kelly Freas
- Analog Science Fiction/Science Fact, September 1972 (1972)
- Analog Science Fiction/Science Fact, September 1972 (1972) with Kelly Freas
- Analog Science Fiction/Science Fact, September 1974 (1974)
- Analog Science Fiction/Science Fact, September 1976 (1976)
- Anarquia (2004)
- Anarquia (2004) with Kelly Freas
- And the Gods Laughed (1987)
- Another Fine Myth (1978)
- Apocalipse 2000 [Portuguese] (1978)
- Apostle (1978)
- Apostle (1978) with Kelly Freas
- Asimov's Science Fiction, January 1999 (1999)
- Asimov's Science Fiction, January 1999 (1999) with Kelly Freas
- Astounding Science Fiction, April 1954 (1954)
- Astounding Science Fiction, April 1954 (1954) with Freas
- Astounding Science Fiction, April 1955 (1955)
- Astounding Science Fiction, April 1955 (1955) with Freas
- Astounding Science Fiction, April 1955 (UK) (1955) with Freas
- Astounding Science Fiction, April 1956 (1956)
- Astounding Science Fiction, April 1956 (1956) with Freas
- Astounding Science Fiction, April 1957 (1957)
- Astounding Science Fiction, April 1957 (1957) with Freas
- Astounding Science Fiction, April 1958 (1958)
- Astounding Science Fiction, April 1958 (1958) with Freas
- Astounding Science Fiction, April 1958 (UK) (1958) with Freas
- Astounding Science Fiction, April 1959 (1959)
- Astounding Science Fiction, April 1959 (1959) with Kelly Freas
- Astounding Science Fiction, April 1959 (UK) (1959) with Freas
- Astounding Science Fiction, August 1954 (1954)
- Astounding Science Fiction, August 1954 (1954) with Freas
- Astounding Science Fiction, August 1954 (UK) (1954) with Kelly Freas
- Astounding Science Fiction, August 1955 (1955)
- Astounding Science Fiction, August 1955 (1955) with Freas
- Astounding Science Fiction, August 1957 (1957)
- Astounding Science Fiction, August 1957 (1957) with Freas
- Astounding Science Fiction, August 1957 (UK) (1957) with Freas
- Astounding Science Fiction, December 1955 (1955)
- Astounding Science Fiction, December 1955 (1955) with Freas
- Astounding Science Fiction, December 1957 (1957)
- Astounding Science Fiction, December 1957 (1957) with Freas
- Astounding Science Fiction, December 1957 (UK) (1957) with Freas
- Astounding Science Fiction, February 1954 (1954)
- Astounding Science Fiction, February 1954 (1954) with Kelly Freas
- Astounding Science Fiction, February 1955 (1955)
- Astounding Science Fiction, February 1955 (1955) with Freas
- Astounding Science Fiction, February 1955 (UK) (1955) with Freas
- Astounding Science Fiction, February 1956 (1956)
- Astounding Science Fiction, February 1956 (1956) with Freas
- Astounding Science Fiction, February 1957 (1957)
- Astounding Science Fiction, February 1957 (1957) with Freas
- Astounding Science Fiction, February 1959 (1959)
- Astounding Science Fiction, February 1959 (1959) with Kelly Freas
- Astounding Science Fiction, January 1955 (1955)
- Astounding Science Fiction, January 1956 (UK) (1956) with Kelly Freas
- Astounding Science Fiction, January 1958 (1958)
- Astounding Science Fiction, January 1958 (1958) with Freas
- Astounding Science Fiction, January 1959 (1959)
- Astounding Science Fiction, January 1959 (1959) with Kelly Freas
- Astounding Science Fiction, July 1954 (UK) (1954) with Kelly Freas
- Astounding Science Fiction, July 1955 (1955)
- Astounding Science Fiction, July 1955 (1955) with Freas
- Astounding Science Fiction, July 1956 (UK) (1956) with Freas
- Astounding Science Fiction, July 1957 (1957)
- Astounding Science Fiction, July 1957 (1957) with Freas
- Astounding Science Fiction, July 1958 (1958)
- Astounding Science Fiction, July 1958 (1958) with Freas
- Astounding Science Fiction, July 1959 (1959)
- Astounding Science Fiction, July 1959 (1959) with Kelly Freas
- Astounding Science Fiction, July 1959 (UK) (1959) with Freas
- Astounding Science Fiction, June 1954 (1954)
- Astounding Science Fiction, June 1954 (1954) with Freas
- Astounding Science Fiction, June 1955 (1955)
- Astounding Science Fiction, June 1955 (1955) with Freas
- Astounding Science Fiction, June 1956 (1956)
- Astounding Science Fiction, June 1956 (1956) with Freas
- Astounding Science Fiction, June 1957 (UK) (1957) with Freas
- Astounding Science Fiction, March 1954 (1954)
- Astounding Science Fiction, March 1954 (1954) with Kelly Freas
- Astounding Science Fiction, March 1954 (UK) (1954) with Kelly Freas
- Astounding Science Fiction, March 1957 (UK) (1957) with Freas
- Astounding Science Fiction, March 1958 (1958)
- Astounding Science Fiction, March 1958 (UK) (1958) with Freas
- Astounding Science Fiction, May 1956 (UK) (1956) with Freas
- Astounding Science Fiction, May 1959 (UK) (1959) with Freas
- Astounding Science Fiction, November 1954 (1954)
- Astounding Science Fiction, November 1954 (1954) with Freas
- Astounding Science Fiction, November 1954 (UK) (1954)
- Astounding Science Fiction, November 1955 (UK) (1955) with Freas
- Astounding Science Fiction, November 1956 (1956)
- Astounding Science Fiction, November 1956 (1956) with Freas
- Astounding Science Fiction, November 1956 (UK) (1956)
- Astounding Science Fiction, November 1956 (UK) (1956) with Freas
- Astounding Science Fiction, November 1957 (1957)
- Astounding Science Fiction, November 1957 (1957) with Freas
- Astounding Science Fiction, November 1957 (UK) (1957) with Freas
- Astounding Science Fiction, October 1953 (1953)
- Astounding Science Fiction, October 1958 (1958)
- Astounding Science Fiction, October 1958 (1958) with Freas
- Astounding Science Fiction, October 1959 (1959)
- Astounding Science Fiction, October 1959 (1959) with Kelly Freas
- Astounding Science Fiction, September 1954 (1954)
- Astounding Science Fiction, September 1954 (1954) with Freas
- Astounding Science Fiction, September 1954 (UK) (1954) with Freas
- Astounding Science Fiction, September 1955 (1955)
- Astounding Science Fiction, September 1955 (1955) with Freas
- Astounding Science Fiction, September 1955 (UK) (1955) with Freas
- Astounding Science Fiction, September 1956 (1956)
- Astounding Science Fiction, September 1956 (1956) with Freas
- Astounding Science Fiction, September 1956 (UK) (1956) with Freas
- Astounding Science Fiction, September 1959 (1959)
- Astounding Science Fiction, September 1959 (1959) with Kelly Freas
- Astounding/Analog Science Fact & Fiction, April 1960 (1960)
- Astounding/Analog Science Fact & Fiction, April 1960 (1960) with Freas
- Astounding/Analog Science Fact & Fiction, August 1960 (UK) (1960) with Freas
- Astounding: John W. Campbell Memorial Anthology (1974) with Kelly Freas
- Astronauts & Androids (1977)
- Astronauts & Androids (1977) with Kelly Freas
- Auf See [German] (2022)
- Beanstalk (1973)
- Beanstalk (1973) with Kelly Freas
- Beyond Capella (1971)
- Beyond Capella (1971) with Kelly Freas
- Birth of Fire (1976)
- Birth of Fire (1976) with Kelly Freas
- Birthright (1975)
- Birthright (1975) with Kelly Freas
- Black Holes & Bug-Eyed-Monsters (1977)
- Blake's Progress (1975)
- Blake's Progress (1975) with Kelly Freas
- Bloodlines (1994)
- Bloodlines (1994) with Kelly Freas
- Brandyjack (1976)
- Brandyjack (1976) with Kelly Freas
- But What of Earth? (1976)
- But What of Earth? (1976) with Kelly Freas
- Capricorn Games (1979)
- Caravan (1975)
- Caravan (1975) with Kelly Freas
- Castaways in Time (1979)
- Castaways in Time (1979) with Kelly Freas
- Catch the Star Winds (1969)
- Catch the Star Winds (1969) with Kelly Freas
- Cemetery World (1983)
- Cerberus (1989)
- Cerberus (1989) with Frank Kelly-Freas
- Chicon IV Program Book (1982)
- Children of the Atom (1953)
- Children of the Atom (1953) with Frank Kelley Frease
- City (1952)
- City (1952) with Frank Kelly Frease
- City of Glass (1955)
- City of Glass (1955) with Kelly Freas
- Code Duello (1968)
- Code Duello (1968) with Kelly Freas
- Confederation Matador (1978)
- Conscience Interplanetary (1974)
- Conscience Interplanetary (1974) with Kelly Freas
- Contraband from Otherspace (1967)
- Contraband from Otherspace (1967) with Kelly Freas
- Convention Annual No. 4: Tricon Edition (1968) with Kelly Freas
- Copyright Violation (1990)
- Copyright Violation (1990) with Frank Kelly-Freas
- Cosmic Saboteur / Look to the Stars (2012)
- Crash Landing on Iduna (1975)
- Crash Landing on Iduna (1975) with Kelly Freas
- Cross of Empire (1976)
- Cross of Empire (1976) with Kelly Freas
- Crown of Infinity (1968)
- Crown of Infinity (1968) with Kelly Freas
- Custer's Last Jump and Other Collaborations (2003)
- Cycle of Nemesis (1967)
- Cycle of Nemesis (1967) with Freas
- Dance of the Apocalypse (1976)
- Dance of the Apocalypse (1976) with Kelly Freas
- Das Psi-Spiel [German] (1974) with Kelly Freas
- Day of Wrath (1971)
- Day of Wrath (1971) with Kelly Freas
- Deeper Than the Darkness (1970)
- Deeper Than the Darkness (1970) with Kelly Freas
- Der purpurne Drache / Der brennende Arkonide [German] (2003)
- Der Sternenschwarm [German] (1968)
- Destination: Saturn (1968)
- Destination: Saturn (1968) with Kelly Freas
- Destiny Doll (1982)
- Dickson! (1984)
- Die Eiskrone [German] (1972) with Kelly Freas
-
Die fünfziger Jahre 1?Die fuenfziger Jahre 1[German] (1984)
- Die Fünfziger Jahre II [German] (1985)
- Die Genhändler [German] (1999)
- Die Liebenden [German] (1978)
- Die tausend Augen des Krado 1 [German] (1971) with Kelly Freas
- Die unheimliche Freiheit [German] (2018)
- Die Wasserhexe [German] (1984)
- Die Weltraum-Mediziner [German] (1977) with Kelley Freas
- Dinosaur Beach (1972)
- Dinosaur Beach (1972) with Kelly Freas
- Dominant Species (1979)
- Dominant Species (1979) with Kelly Freas
- Dragon Magazine, January 1990 (1990)
- Dragon Magazine, January 1990 (1990) with Kelly Freas
- Dread Companion (1972)
- Dread Companion (1972) with Kelly Freas
- Dreadful Sanctuary (1967)
- Dreadful Sanctuary (1967) with Kelly Freas
- Edge of Time (1967)
- Edge of Time (1967) with Kelly Freas
- Ein Doppelleben im Kosmos [German] (1995) with Kelly Freas
- Ein Dutzend H-Bomben [German] (1983)
- Epitaph in Rust (1976)
- Epitaph in Rust (1976) with Kelly Freas
- Eye in the Sky (1968)
- Eye in the Sky (1968) with Kelly Freas
- Falling Toward Forever (1975)
- Falling Toward Forever (1975) with Kelly Freas
- Fantastic Universe, April 1955 (1955)
- Fantastic Universe, April 1955 (1955) with Kelly Freas
- Fantastic Universe, April 1956 (1956)
- Fantastic Universe, April 1956 (1956) with Kelly Freas
- Fantastic Universe, August 1955 (1955)
- Fantastic Universe, August 1955 (1955) with Kelly Freas
- Fantastic Universe, February 1956 (1956)
- Fantastic Universe, February 1956 (1956) with Kelly Freas
- Fantastic Universe, February 1957 (1957)
- Fantastic Universe, February 1957 (1957) with Kelly Freas
- Fantastic Universe, June 1955 (1955)
- Fantastic Universe, June 1955 (1955) with Kelly Freas
- Fantastic Universe, October 1955 (1955)
- Fantastic Universe, October 1955 (1955) with Kelly Freas
- Finish Line (1976)
- Finish Line (1976) with Kelly Freas
- First on Mars (1976)
- First on Mars (1976) with Kelly Freas
- Five Science Fiction Novels (1952)
- Flower of Doradil (1970)
- Flower of Doradil (1970) with Kelly Freas
- Frank Kelly Freas: A Portfolio (1957)
- Frank Kelly Freas: As He Sees It (2000)
- Frank Kelly Freas: The Art of Science Fiction (1977)
- Fredric Brown: le rêveur lunatique [French] (1988)
- From This Day Forward (1973)
- From This Day Forward (1973) with Kelly Freas
- Full Cycle (2012) with Freas
- Future Sanctuary (1976)
- Future Sanctuary (1976) with Kelly Freas
- Future Science Fiction, #29 (1956)
- Future Science Fiction, #29 (1956) with Freas
- Future Science Fiction, #33. Summer 1957 (1957)
- Future Science Fiction, #33. Summer 1957 (1957) with Freas
- Future Science Fiction, August 1954 (1954)
- Future Science Fiction, August 1954 (1954) with Freas
- Future Science Fiction, October 1954 (1954)
- Future Science Fiction, October 1954 (1954) with Freas
- Galactic Invaders (1976)
- Galactic Invaders (1976) with Kelly Freas
- Galaktische Odyssee [German] (2018) with Kelley Freas
- Galaxis der Verlorenen [German] (1975)
- Galaxy, #2 (1994)
- Galaxy, #3 (1994)
- Galaxy, #6 (1994)
- Galaxy, August 1977 (1977)
- Galaxy, August 1977 (1977) with Kelly Freas
- Galileo, September 1979 (1979)
- Galileo, September 1979 (1979) with Kelly Freas
- Gallagher's Glacier (1970)
- Gallagher's Glacier (1970) with Kelly Freas
- Gates of the Universe (1975)
- Gates of the Universe (1975) with Kelly Freas
- Gateways to Forever: The Story of the Science Fiction Magazines from 1970-1980 (2007) with Kelly Freas
- Gesänge des Computers und sechs andere Erzählungen [German] (1975) with Kelly Freas
- Gift of the Manti (1977)
- Gift of the Manti (1977) with Kelly Freas
- Great Science Fiction Adventures (1968)
- Great Science Fiction Adventures (1968) with Kelly Freas
- Gremlins, Go Home! (1974)
- Gremlins, Go Home! (1974) with Kelly Freas
- Gurps Lensman Starkly Astounding Space-Opera Adventure Second Edition (2001)
- Gurps Lensman Starkly Astounding Space-Opera Adventure Second Edition (2001) with Kelly Freas
- Gurps Planet Krishna (1997)
- Gurps Planet Krishna (1997) with Kelly Freas
- Hard to Be a God (1974)
- Hard to Be a God (1974) with Kelly Freas
- Have Space Suit - Will Travel (1995)
- Hawk Among the Sparrows: Three Science Fiction Novellas (1976) with Kelly Freas
- Hell's Gate (1970)
- Hell's Gate (1970) with Kelly Freas
- Hellquad (1984)
- Herds (1975)
- Herds (1975) with Kelly Freas
- Hierarchies (1973)
- Hierarchies (1973) with Kelly Freas
- High Adventure, #135 March 2014 (2014) with Kelly Freas
- High Adventure, #151 November 2016 (2016)
- I guerrieri dell'alba [Italian] (1976) with Kelly Freas
- I Was a Teen-Age Secret Weapon (2013) with Kelley Freas
- I, Aleppo (1976)
- I, Aleppo (1976) with Kelly Freas
- I, Libertine (1956)
- Ice Prison (1976)
- Ice Prison (1976) with Kelly Freas
- Identity Seven (1974)
- Identity Seven (1974) with Kelly Freas
- If, April 1956 (1956)
- If, April 1956 (1956) with Kelly Freas
- If, December 1955 (1955)
- If, February 1959 (1959)
- If, February 1959 (1959) with Kelly Freas
- If, June 1955 (1955)
- IK 400 [Swedish] (1975)
- Im Kosmos verschollen [German] (2018)
- Images, Conceits & Lollygags (2003)
- Images, Conceits & Lollygags (2003) with Kelly Freas
- In the Kingdom of the Beasts (1971)
- In the Kingdom of the Beasts (1971) with Kelly Freas
- Into the Slave Nebula (1968)
- Into the Void (1991)
- Into the Void (1991) with Kelly Freas
- Invasion (1975)
- Invasion (1975) with Kelly Freas
- Ipomoea (1969)
- Ipomoea (1969) with Kelly Freas
- Isaac Asimov's Science Fiction Magazine, July-August 1978 (1978)
- Isaac Asimov's Science Fiction Magazine, Winter 1977 (1977)
- Jack Anderson Against Dr. Tek!: 1994 (1974)
- Jack Anderson Against Dr. Tek!: 1994 (1974) with Kelly Freas
-
Jean — eine von acht?Jean - eine von acht[German] (1983)
- Jeremy Case (1976)
- Jeremy Case (1976) with Kelly Freas
- Jondelle (1973)
- Jondelle (1973) with Kelly Freas
- Judgment Night (1952)
- Kane's Odyssey (1976)
- Kane's Odyssey (1976) with Kelly Freas
- Keeper (1976)
- Keeper (1976) with Kelly Freas
- King of Argent (1973)
- King of Argent (1973) with Kelly Freas
- L. Ron Hubbard Presents Writers of the Future Volume XVII (2001)
- L. Ron Hubbard Presents Writers of the Future, Volume XI (1995)
- La caduta di Cronopolis [Italian] (1976) with Kelly Freas
- La saga de Telzey Amberdon [Spanish] (2014)
- Last Call from Sector 9G / Time Crime (2018) with Kelly Freas
-
Le pont sur les étoiles?Le pont sur les etoiles[French] (1975) with Kelly Freas
- Legacy (1976)
- Legacy (1976) with Kelly Freas
- Lektrik Jack [German] (1979) with Kelly Freas
- Les cendres de la Terre [French] (1976)
- Les courants de l'espace [French] (1981) with Kelly Freas
- Les guerriers d'Aurore [French] (1982) with Kelly Freas
- Les sorciers de l'espace [French] (1976)
- Locked Worlds (2013)
- Locus, #103 December 25, 1971 (1971)
- Locus, #103 December 25, 1971 (1971) with Kelly Freas
- Locus, #149 September 14, 1973 (1973)
- Locus, #149 September 14, 1973 (1973) with Kelly Freas
- Lord of the Green Planet (1967)
- Lord of the Green Planet (1967) with Kelly Freas
- Lorelei of the Red Mist: Planetary Romances (2007)
- Luzifers Hammer [German] (1980)
- Luzifers Hammer [German] (1980) with Kelly Freas
- Magazine de Ficção Científica, November 1970 [Portuguese] (1970)
- Man of Many Minds (1959)
- Man of Many Minds (1959) with Kelly Freas
- Mankind Under the Leash (1966)
- Mankind Under the Leash (1966) with Kelly Freas
- Marauders of Gor (1975)
- Marauders of Gor (1975) with Kelly Freas
- Marcianos Go Home! [Spanish] (2003)
- Marion Zimmer Bradley's Fantasy, Autumn 1989 (1989) with Laura Brodian Freas
- Marion Zimmer Bradley's Fantasy, Autumn 1989 (1989) with Laura Brodian Kelly Freas
- Marion Zimmer Bradley's Fantasy, Summer 1991 (1991) with Laura Brodian Freas
- Marion Zimmer Bradley's Fantasy, Summer 1991 (1991) with Laura Freas
- Marion Zimmer Bradley's Fantasy, Winter 1989 (1989)
- Martians, Go Home (1976) with Kelly Freas
- Martiens, go home ! [French] (2000)
- Marziani, andate a casa! [Italian] (1980) with Biagio Cristaldi
- Masque World (1969)
- Masque World (1969) with Kelly Freas
- Master of the Stars (1976)
- Master of the Stars (1976) with Kelly Freas
- Mayenne (1973)
- Mayenne (1973) with Kelly Freas
- Mayenne and Jondelle (1981) with Kelly Freas
- Mayenne and Jondelle (1981) with Kelly Freas
- Medea: Harlan's World (1985)
- Merkityt miehet [Finnish] (1992)
- Mindship (1974)
- Mindship (1974) with Kelly Freas
- Mindwipe! (1976)
- Mindwipe! (1976) with Kelly Freas
- Mirror Image (1972)
- Mirror Image (1972) with Kelly Freas
- Mister Justice (1973)
- Mister Justice (1973) with Kelly Freas
- Monitor Found in Orbit (1974)
- Monitor Found in Orbit (1974) with Kelly Freas
- Myth Conceptions (1980)
- Myth Conceptions (1980) with Kelly Freas
- Nebula Alert (1967)
- Nebula Alert (1967) with Kelly Freas
- Needle (1969)
- Needle (1969) with Kelly Freas
- Nell'oceano della notte [Italian] (1986) with Kelly Freas
- New Worlds of Fantasy (1967)
- New Worlds of Fantasy (1967) with Kelly Freas
- New Worlds of Fantasy #2 (1970)
- New Worlds of Fantasy #2 (1970) with Kelly Freas
- New Worlds Science Fiction (US), March 1960 (1960) with Kelly Freas
- News from Elsewhere (1969)
- Newton and the Quasi-Apple (2001)
- Odyssey, Spring 1976 (1976)
- Odyssey, Spring 1976 (1976) with Kelly Freas
- Omnilingual (2014) with Freas
- On the Symb-Socket Circuit (1972)
- On the Symb-Socket Circuit (1972) with Kelly Freas
- Operation Chaos (1971)
- Our Children's Children (1983)
- Out of Their Minds (1983)
- Owl Time: A Collection of Fictions (1985)
- Pandora's Planet (1973)
- Pandora's Planet (1973) with Kelly Freas
- Perigee #1, 1973 (1973)
- Pioniere des Kosmos [German] (1973)
- Pity About Earth (1968)
- Pity About Earth (1968) with Kelly Freas
- Planet Probability (1973)
- Planet Probability (1973) with Kelly Freas
- Planet Stories, Fall 1954 (1954)
- Planet Stories, Fall 1954 (1954) with Kelly Freas
- Planet Stories, January 1954 (1954)
- Planet Stories, January 1954 (1954) with Kelly Freas
- Planet Stories, July 1953 (1953)
- Planet Stories, July 1953 (1953) with Kelly Freas
- Planet Stories, March 1954 (1954)
- Planet Stories, May 1954 (1954)
- Planet Stories, May 1954 (1954) with Kelly Freas
- Planet Stories, November 1953 (1953)
- Planet Stories, November 1953 (1953) with Kelly Freas
- Planet Stories, September 1953 (1953)
- Planet Stories, September 1953 (1953) with Kelly Freas
- Planet Stories, Spring 1955 (1955)
- Planet Stories, Spring 1955 (1955) with Kelly Freas
- Planet Stories, Summer 1954 (1954)
- Planet Stories, Summer 1954 (1954) with Kelly Freas
- Planet Stories, Summer 1955 (1955)
- Planet Stories, Summer 1955 (1955) with Kelly Freas
- Planet Stories, Winter 1954-55 (1954)
- Planet Stories, Winter 1954-55 (1954) with Kelly Freas
- Planet till salu [Swedish] (1975)
- Professor Zamorra, #566: Odins Zauber [German] (1996) with Freas
- Project Jove (1971) with Kelly Freas
- Project Jove / The Hunters of Jundagai (1971)
- Promised Land (1974)
- Promised Land (1974) with Kelly Freas
- Rebels of Merka (1976)
- Rebels of Merka (1976) with Kelly Freas
- Recoil (1971)
- Recoil (1971) with Kelly Freas
- Redbeard (1969)
- Redbeard (1969) with Kelly Freas
- Renegades of Time (1975)
- Renegades of Time (1975) with Kelly Freas
- Reunion on Neverend (1994)
- Reunion on Neverend (1994) with Kelly Freas
- Revolte gegen die Unsterblichen [German] (1968) with Kelly Freas
- Rhapsody in Black (1973)
- Rhapsody in Black (1973) with Kelly Freas
- Robert A. Heinlein: America As Science Fiction (1980)
- Rod Serling's The Twilight Zone Magazine, June 1988 (1988) with Kelly Freas
- Roller Coaster World (1972)
- Roller Coaster World (1972) with Kelly Freas
- Ruler of the World (1976)
- Ruler of the World (1976) with Kelly Freas
- S F Con (1954)
- S F Con (1954) with Kelly Freas
- Satellite Science Fiction, December 1956 (1956)
- Satellite Science Fiction, December 1956 (1956) with Kelly Freas
- Scavenger Hunt (1976)
- Scavenger Hunt (1976) with Kelly Freas
- Science Fiction by Women (1953-1957) (2022)
- Science Fiction by Women (1958-1963) (2019)
- Science Fiction Chronicle, #166 September 1993 (1993)
- Science Fiction Gems: Volume Eleven (2016) with Kelly Freas
- Science Fiction Monthly (Australia), #13 September 1956 (1956) with Kelly Freas
- Science Fiction Monthly (Australia), #14 October 1956 (1956) with Kelly Freas
- Science Fiction Monthly (Australia), #16 December 1956 (1956) with Kelly Freas
- Science Fiction Monthly (Australia), #18 February 1957 (1957) with Kelly Freas
- Science Fiction Monthly, February 1976 (1976)
- Science Fiction Quarterly, August 1954 (1954)
- Science Fiction Quarterly, February 1955 (1955)
- Science Fiction Quarterly, February 1956 (1956)
- Science Fiction Quarterly, November 1954 (1954)
- Science Fiction Quarterly, November 1955 (1955)
- Science Fiction Stories 1 [German] (1970)
- Science Fiction Stories [UK] #4 (1958)
- Science Fiction Stories [UK] #6 (1958)
- Science Fiction Stories [UK] #7 (1958)
- Science Fiction Stories, August 1958 (1958)
- Science Fiction Stories, August 1958 (1958) with Freas
- Science Fiction Stories, January 1956 (1956)
- Science Fiction Stories, January 1956 (1956) with Freas
- Science Fiction Stories, July 1957 (1957)
- Science Fiction Stories, July 1957 (1957) with Freas
- Science Fiction Stories, July 1959 (1959)
- Science Fiction Stories, July 1959 (1959) with Kelly Freas
- Science Fiction Stories, June 1958 (1958)
- Science Fiction Stories, June 1958 (1958) with Freas
- Science Fiction Stories, March 1958 (1958)
- Science Fiction Stories, March 1958 (1958) with Freas
- Science Fiction Stories, May 1960 (1960)
- Science Fiction Stories, May 1960 (1960) with Kelly Freas
- Science Fiction Stories, November 1955 (1955)
- Science Fiction Stories, November 1955 (1955) with Freas
- Science Fiction Stories, September 1959 (1959) with Ed Emshwiller
- Science Fiction Stories, September 1959 (1959) with Emsh and Kelly Freas
- Science-Fiction-Stories 17 [German] (1972) with Kelly Freas
- Science-Fiction-Stories 31 [German] (1973)
- Science-Fiction-Stories 37 [German] (1974) with Kelly Freas
- Science-Fiction-Stories 67 [German] (1977)
- Seas of Ernathe (1976)
- Seas of Ernathe (1976) with Kelly Freas
- Seeds of Change (1975)
- Seeds of Change (1975) with Kelly Freas
- Seeklight (1975)
- Seeklight (1975) with Kelly Freas
- Serving in Time (1975)
- Serving in Time (1975) with Kelly Freas
- Shadow on the Stars (1977)
- Shadow on the Stars (1977) with Kelly Freas
-
Shannach —The Last: Farewell to Mars?Shannach -The Last: Farewell to Mars(2011)
- Shepherd (1977)
- Shepherd (1977) with Kelly Freas
- Siege Perilous (1966)
- Sirius, #31 [Croatian] (1979)
- Sirius, #35 [Croatian] (1979)
- Sirius, #48 [Croatian] (1980)
- Sirius, #85 [Croatian] (1983)
- Sirius, #96 [Croatian] (1984)
- Sirius, #99 [Croatian] (1984)
- Slaves of Sleep (1967)
- Slaves of Sleep (1967) with Kelly Freas
- Sleepwalker's World (1972)
- Sleepwalker's World (1972) with Kelly Freas
- Soldier, Ask Not (1975)
- Soldier, Ask Not (1975) with Kelly Freas
- Some Will Not Die (1978)
- Somewhere a Voice (1966)
- Somewhere a Voice (1966) with Kelly Freas
- Space Trap (1976)
- Space Trap (1976) with Kelly Freas
- Spawn (1976)
- Spawn (1976) with Kelly Freas
- Star Well (1968)
- Star Well (1968) with Kelly Freas
- Star-Anchored, Star-Angered (1984)
- Starmasters' Gambit (1973)
- Starmasters' Gambit (1973) with Kelly Freas
- Sterbendes Land Utopia [German] (1981)
- Strange Trades (2001)
- Super Science-Fiction, October 1957 (1957)
- Super Science-Fiction, October 1957 (1957) with Kelly Freas
- Super-Science Fiction, April 1957 (1957)
- Super-Science Fiction, April 1957 (1957) with Kelly Freas
- Super-Science Fiction, August 1957 (1957)
- Super-Science Fiction, August 1957 (1957) with Kelly Freas
- Super-Science Fiction, August 1958 (1958)
- Super-Science Fiction, August 1958 (1958) with Kelly Freas
- Super-Science Fiction, December 1956 (1956)
- Super-Science Fiction, December 1956 (1956) with Kelly Freas
- Super-Science Fiction, December 1957 (1957)
- Super-Science Fiction, December 1957 (1957) with Kelly Freas
- Super-Science Fiction, December 1958 (1958)
- Super-Science Fiction, December 1958 (1958) with Kelly Freas
- Super-Science Fiction, February 1958 (1958)
- Super-Science Fiction, February 1958 (1958) with Kelly Freas
- Super-Science Fiction, June 1958 (1958)
- Super-Science Fiction, June 1958 (1958) with Kelly Freas
- Super-Science Fiction, June 1959 (1959)
- Super-Science Fiction, June 1959 (1959) with Kelly Freas
- Swan Song (1975)
- Swan Song (1975) with Kelly Freas
- Tactics of Mistake (1972)
- Tactics of Mistake (1972) with Kelly Freas
- Takeoff! (1979)
- Tales from Super-Science Fiction (2012)
- Testament XXI (1973)
- Testament XXI (1973) with Kelly Freas
- Teuflisches Spielzeug [German] (1980)
- The 1985 Annual World's Best SF (1985)
- The 1987 World Fantasy Convention Program Book (1987)
- The Ambulance Made Two Trips (2012) with Freas
- The Aquiliad: Aquila in the New World (2000)
- The Arsenal Out of Time (1967)
- The Arsenal Out of Time (1967) with Kelly Freas
- The Astounding Fifties: A Selection from Astounding Science Fiction Magazine (1990)
- The Ballad of Beta-2 (1971)
- The Ballad of Beta-2 (1971) with Kelly Freas
- The Beast (1984)
- The Best of James H. Schmitz (1991)
- The Best of Planet Stories #1: Strange Adventures on Other Worlds (1975)
- The Best of Planet Stories #1: Strange Adventures on Other Worlds (1975) with Kelly Freas
- The Big Ball of Wax (1956)
- The Big Ball of Wax (1956) with Kelly Freas
- The Big Black Mark (1975)
- The Big Black Mark (1975) with Kelly Freas
- The Black Roads (1976)
- The Black Roads (1976) with Kelly Freas
- The Bodelan Way (1974)
- The Bodelan Way (1974) with Kelly Freas
- The Brain Machine (1968)
- The Brides of Dracula (1960)
- The Brides of Dracula (1960) with Kelly Freas
- The Carnelian Cube (1967)
- The Chariots of Ra (1972)
- The Chariots of Ra (1972) with Kelly Freas
- The City Machine (1972)
- The City Machine (1972) with Kelly Freas
- The Coming of Conan (1953)
- The Conquest of the Planets / The Man Who Annexed the Moon (2013)
- The Currents of Space (1966)
- The Currents of Space (1968) with Kelly Freas
- The Daleth Effect (1970) with Kelly Freas
- The Dark Dimensions (1971)
- The Dark Dimensions (1971) with Kelly Freas
- The Dark Intruder & Other Stories (1972)
- The Dark Intruder & Other Stories (1972) with Kelly Freas
- The Day of Their Return (1994)
- The Day of Timestop (1968)
- The Day of Timestop (1968) with Kelly Freas
- The Days of Glory (1971)
- The Days of Glory (1971) with Kelly Freas
- The Deadly Sky (1983)
- The Dimensioneers (1982)
- The Dream Master (1966)
- The Dreamfields (1976)
- The Dreamfields (1976) with Kelly Freas
- The Ecolog (1977)
- The Ecolog (1977) with Kelly Freas
- The Eden Cycle (1974)
- The Eden Cycle (1974) with Kelly Freas
- The End of Eternity (1966)
- The End of Eternity (1966) with Kelly Freas
- The Extraterritorial (1977)
- The Extraterritorial (1977) with Kelly Freas
- The Fall of Chronopolis (1974)
- The Fall of Chronopolis (1974) with Kelly Freas
- The Fall of the Towers (1970)
- The Fall of the Towers (1970) with Kelly Freas
- The Fall of the Towers (1972)
- The Fall of the Towers (1972) with Kelly Freas
- The Fenris Device (1974)
- The Fenris Device (1974) with Kelly Freas
- The Gateway Trip: Tales and Vignettes of the Heechee (1990)
- The Girls from Planet 5 (1967)
- The Girls from Planet 5 (1967) with Kelly Freas
- The Goblin Reservation (1982)
- The Goblin Reservation (1982) with Kelly Freas
- The Hand of Zei (1982)
- The Hand of Zei (1982) with Kelly Freas
- The Hard Way Up (1972)
- The Hard Way Up (1972) with Kelly Freas
- The Haunt of Horror, August 1973 (1973)
- The Haunt of Horror, August 1973 (1973) with Kelly Freas
- The Haunt of Horror, October 1973 (unpublished)
- The Haunt of Horror, October 1973 (unpublished) with Kelly Freas
- The Hawks of Arcturus (1974)
- The Hawks of Arcturus (1974) with Kelly Freas
- The High Hex (1969)
- The Horde (1976)
- The Horde (1976) with Kelly Freas
- The Hunters of Jundagai (1971)
- The Hunters of Jundagai (1971) with Kelly Freas
- The Iron Rain (1976)
- The Iron Rain (1976) with Kelly Freas
- The Jaws That Bite, the Claws That Catch (1975)
- The Jaws That Bite, the Claws That Catch (1975) with Kelly Freas
- The Jester at Scar (1970)
- The Jester at Scar (1970) with Kelly Freas
- The John W. Campbell Letters with Isaac Asimov and A. E. van Vogt, Volume 2 (1993)
- The John W. Campbell Letters with Isaac Asimov and A. E. van Vogt, Volume 2 (1993) with Kelly Freas
- The John W. Campbell Letters, Volume 1 (1985)
- The Journal of the World Science Fiction Society, Inc., Newyorcon Program Issue (1956)
- The Key to Venudine (1968)
- The Key to Venudine (1968) with Kelly Freas
- The King of Eolim (1975)
- The King of Eolim (1975) with Kelly Freas
- The Lifeship (1985)
- The Light That Never Was (1973)
- The Light That Never Was (1973) with Kelly Freas
- The Lion Game (1973)
- The Lion Game (1973) with Kelly Freas
- The Maelstrom's Eye (1992)
- The Maelstrom's Eye (1992) with Kelly Freas
- The Magazine of Fantasy & Science Fiction, January 1990 (1990)
- The Magazine of Fantasy & Science Fiction, January 1990 (1990) with Kelly Freas
- The Magazine of Fantasy and Science Fiction, April 1958 (1958)
- The Magazine of Fantasy and Science Fiction, April 1958 (1958) with Kelly Freas
- The Magazine of Fantasy and Science Fiction, April 1971 (1971)
- The Magazine of Fantasy and Science Fiction, April 1971 (1971) with Kelly Freas
- The Magazine of Fantasy and Science Fiction, December 1956 (1956)
- The Magazine of Fantasy and Science Fiction, December 1956 (1956) with Kelly Freas
- The Magazine of Fantasy and Science Fiction, December 1957 (1957)
- The Magazine of Fantasy and Science Fiction, December 1957 (1957) with Kelly Freas
- The Magazine of Fantasy and Science Fiction, February 1955 (1955)
- The Magazine of Fantasy and Science Fiction, February 1955 (1955) with Kelly Freas
- The Magazine of Fantasy and Science Fiction, July 1977 (1977)
- The Magazine of Fantasy and Science Fiction, July 1977 (1977) with Kelly Freas
- The Magazine of Fantasy and Science Fiction, March 1957 (1957)
- The Magazine of Fantasy and Science Fiction, March 1957 (1957) with Kelly Freas
- The Magazine of Fantasy and Science Fiction, May 1957 (1957)
- The Magazine of Fantasy and Science Fiction, May 1957 (1957) with Kelly Freas
- The Magazine of Fantasy and Science Fiction, November 1956 (1956)
- The Magazine of Fantasy and Science Fiction, November 1956 (1956) with Kelly Freas
- The Magazine of Fantasy and Science Fiction, October 1956 (1956)
- The Magazine of Fantasy and Science Fiction, October 1956 (1956) with Kelly Freas
- The Magazine of Fantasy and Science Fiction, September 1956 (1956)
- The Magazine of Fantasy and Science Fiction, September 1956 (1956) with Kelly Freas
- The Man Who Wanted Stars (1968)
- The Man Who Wanted Stars (1968) with Kelly Freas
- The Meddlers (1976)
- The Meddlers (1976) with Kelly Freas
- The Mind Net (1974)
- The Mind Net (1974) with Kelly Freas
- The Naked Sun (1966)
- The Naked Sun (1966) with Kelly Freas
- The Naked Sun (1969)
- The Naked Sun (1969) with Kelly Freas
- The Off-Worlders (1966)
- The Off-Worlders (1966) with Kelly Freas
- The Orc Wars (1992)
- The Paradise Game (1974)
- The Paradise Game (1974) with Kelly Freas
- The Pirates of Ersatz (2013)
- The Prince of Evil (1985)
- The Prince of Evil (1985) with Kelly Freas
- The Pritcher Mass (1973)
- The Pritcher Mass (1973) with Kelly Freas
- The Probability Man (1972)
- The Probability Man (1972) with Kelly Freas
- The Quest Begins (1996) with Wendy Pini
- The Quest Begins (1996) with Kelly Freas and Wendy Pini
- The Radiant Dragon (1992)
- The Radiant Dragon (1992) with Kelly Freas
- The Red Tape War (1991)
- The Regiments of Night (1972)
- The Regiments of Night (1972) with Kelly Freas
- The River and the Dream (1977)
- The River and the Dream (1977) with Kelly Freas
- The Ruins of Isis (1978)
- The Scarlet Saint / The Man from Saturn (2020)
- The Science Fiction of H. G. Wells (1981)
- The Science Fiction of H. G. Wells (1981) with Kelly Freas
- The Seeker (1976)
- The Seeker (1976) with Kelly Freas
- The Ship That Sailed the Time Stream (1970)
- The Singing Stones (1968)
- The Singing Stones (1968) with Kelly Freas
- The Skies Discrowned (1976)
- The Skies Discrowned (1976) with Kelly Freas
- The Space Barbarians (1969)
- The Space Barbarians (1969) with Kelly Freas
- The Space Gamer, 1975, Issue 2 (1975)
- The Space Gamer, 1975, Issue 2 (1975) with Kelly Freas
- The Space Willies / Six Worlds Yonder (1971)
- The Space Willies / Six Worlds Yonder (1971) with Kelly Freas
- The Star Virus (1970)
- The Star Virus (1970) with Kelly Freas
- The Star Web (1975)
- The Star Web (1975) with Kelly Freas
- The Star-Crowned Kings (1975)
- The Star-Crowned Kings (1975) with Kelly Freas
- The Stardroppers (1975)
- The Stardroppers (1975) with Kelly Freas
- The Stars Like Dust (1966)
- The Stars Like Dust (1966) with Kelly Freas
- The Stone That Never Came Down (1975)
- The Stone That Never Came Down (1975) with Kelly Freas
- The Super Hugos (1992)
- The Telzey Toy (1973)
- The Telzey Toy (1973) with Kelly Freas
- The Three Suns of Amara (1973)
- The Three Suns of Amara (1973) with Kelly Freas
- The Thurb Revolution (1968)
- The Thurb Revolution (1968) with Kelly Freas
- The Trouble with You Earth People (1980)
- The Trouble with You Earth People (1980) with Kelly Freas
- The Twilight of Briareus (1975)
- The Twilight of Briareus (1975) with Kelly Freas
- The Unknown Shore (1976)
- The Unknown Shore (1976) with Kelly Freas
- The Unteleported Man (1966)
- The Unteleported Man (1966) with Kelly Freas
- The Vengeance of Kyvor / At the Earth's Core (2013)
- The Wandering Variables (1972)
- The Wandering Variables (1972) with Kelly Freas
- The Warriors of Dawn (1975)
- The Warriors of Dawn (1975) with Kelly Freas
- The Werewolf Principle (1982)
- The Whenabouts of Burr (1975)
- The Whenabouts of Burr (1975) with Kelly Freas
- The Wind Whales of Ishmael (1971)
- The Wind Whales of Ishmael (1971) with Kelly Freas
- The Winds of Darkover (1970)
- The Winds of Darkover (1970) with Kelly Freas
- The Winds of Gath (1967)
- The Winds of Gath (1967) with Kelly Freas
- The Wizards of Senchuria (1969)
- The Wizards of Senchuria (1969) with Kelly Freas
- The World Jones Made (1967)
- The World Jones Made (1967) with Kelly Freas
- The World Menders (1972)
- The World Menders (1972) with Kelly Freas
- The World Swappers (1967)
- The World Swappers (1967) with Frank Kelley Freas
- The World Wreckers (1971)
- The World Wreckers (1971) with Kelly Freas
- The Yellow Fraction (1969)
- The Yellow Fraction (1969) with Kelly Freas
- The Zen Gun (1983)
- Then Beggars Could Ride (1976)
- Then Beggars Could Ride (1976) with Kelly Freas
- This Side of Infinity (1972)
- Tiger in the Stars (1976)
- Tiger in the Stars (1976) with Kelly Freas
- Tigermannen [Swedish] (1973)
- Time & Chance (1996)
- Time Gladiator (1969)
- Time Gladiator (1969) with Kelly Freas
- Timescoop (1969)
- Timescoop (1969) with Kelly Freas
- To Challenge Chaos (1972)
- To Challenge Chaos (1972) with Kelly Freas
- To Outrun Doomsday (1967)
- To Outrun Doomsday (1967) with Kelly Freas
- To Renew the Ages (1976)
- To Renew the Ages (1976) with Kelly Freas
- Tomorrow Speculative Fiction, August 1994 (1994)
- Tonight We Steal the Stars (1969)
- Tonight We Steal the Stars (1969) with Kelly Freas
- Tops in Science Fiction No.3 (1954)
- Tops in Science Fiction, Fall 1953 (1953)
- Toyman (1969)
- Toyman (1969) with Freas
- Trapped (1993)
- Treasure of Tau Ceti (1969)
- Treasure of Tau Ceti (1969) with Kelly Freas
- Tricon Program Book (1966)
-
Trinité?Trinite[French] (1980) with Kelly Freas
- Two Complete Science-Adventure Books, Spring 1953 (1953)
- Two Complete Science-Adventure Books, Spring 1954 (1954)
- Two Complete Science-Adventure Books, Summer 1953 (1953)
- Two Complete Science-Adventure Books, Winter 1953 (1953)
- Universo senza luce [Italian] (1980) with Kelly Freas
- Unternehmen Walhalla [German] (1958) with Kelly Freas
- Unto the Last Generation (1975)
- Unto the Last Generation (1975) with Kelly Freas
- Up to the Sky in Ships / In and Out of Quandry (1982)
- Up to the Sky in Ships / In and Out of Quandry (1982) with Kelly Freas
- Uppror! [Swedish] (1974)
- Vengeance of Masks (2003)
- Vulcan's Hammer (1972)
- Vulcan's Hammer (1972) with Kelly Freas
- Walls Within Walls (1975)
- Walls Within Walls (1975) with Kelly Freas
- War of the Gurus (1974)
- War of the Gurus (1974) with Kelly Freas
- Warlord's World (1975)
- Warlord's World (1975) with Kelly Freas
- Watchbird (1990)
- We Claim These Stars! (1968)
- We Claim These Stars! (1968) with Freas
- Weird Tales, Fall 1990 (1990)
- Weird Tales, January 1953 (1953)
- Weird Tales, November 1950 (1950)
- Weird Tales, November 1951 (1951)
- Weird Tales, Summer 1990 (1990)
- Welt der Null-A [German] (1968)
- Weltraumkadetten [German] (1983)
- West of Honor (1976)
- West of Honor (1976) with Kelly Freas
- Wettlauf um Venkarra [German] (1980)
- What Happened to Emily Goode After the Great Exhibition (1978)
- Who? (1968)
- Wishing Season (1993)
- World Without Stars (1967)
- World Without Stars (1967) with Kelly Freas
- Zeit-Odyssee [German] (1973)
- Zenya (1974)
- Zenya (1974) with Kelly Freas
- Zwischen zwei Welten [German] (1983)
- Återkomst till morgondagen [Swedish] (1974)
-
Κάτω ἀπό τά τείχη?Káto apó ta teíchi[Greek] (1980) with Kelly Freas
-
Ἀναγκαστική προσγείωση?Anankastikí prosgeíosi[Greek] (1980) with Kelly Freas
- "If the Sabot Fits ... " (1968)
- "If the Sabot Fits ... " (1968) with Kelly Freas
- "My Willie Can Do Anything" (1954)
- "My Willie Can Do Anything" [2] (1954)
- "My Willie Can Do Anything" [3] (1954)
- "On The Care And Breeding of Pigs" (1954)
- "On The Care And Breeding of Pigs" (1954) with Freas
- "On The Care And Breeding of Pigs" [2] (1954)
- "On The Care And Breeding of Pigs" [2] (1954) with Freas
- "On The Care And Breeding of Pigs" [3] (1954)
- "On The Care And Breeding of Pigs" [3] (1954) with Freas
- "On The Care And Breeding of Pigs" [4] (1954)
- "On The Care And Breeding of Pigs" [4] (1954) with Freas
- "Phone Me in Central Park" (1954)
- "Phone Me in Central Park" (1954) with Kelly Freas
- "Riddle Me This ... " (1972)
- "Riddle Me This ... " (1972) with Kelly Freas
- "Riddle Me This ... " [2] (1972)
- "Riddle Me This ... " [2] (1972) with Kelly Freas
- "To Sleep, Perchance to Dream ... " (1968) with Kelly Freas
- "To Sleep, Perchance to Dream ..." (1968)
- ... And Cauldron Bubble (1968)
- ... And Cauldron Bubble (1968) with Kelly Freas
- ... And Comfort to the Enemy (1969)
- ... And Comfort to the Enemy (1969) with Kelly Freas
- ... And Comfort to the Enemy [2] (1969)
- ... And Comfort to the Enemy [2] (1969) with Kelly Freas
- 1% Inspiration (1957)
-
1953 — The Coming of Conan by Robert E. Howard?1953 - The Coming of Conan by Robert E. Howard(1978)
-
1956 — Homecalling by Judith Merril?1956 - Homecalling by Judith Merril(1978)
-
1956 — Homecalling by Judith Merril [2]?1956 - Homecalling by Judith Merril [2](1978)
- 2066: Election Day (1956)
- 2066: Election Day (1956) with Freas
- 2066: Election Day [2] (1956)
- 2066: Election Day [2] (1956) with Freas
- A Bottle of Old Wine (1953)
- A Bottle of Old Wine (1953) with Kelly Freas
- A Bridle for Pegasus (1973)
- A Bridle for Pegasus (1973) with Kelly Freas
- A Bridle for Pegasus [2] (1973)
- A Bridle for Pegasus [2] (1973) with Kelly Freas
- A Cold Night for Crying (1954)
- A Cold Night for Crying (1954) with Kelly Freas
- A Criminal Act (1967)
- A Criminal Act (1967) with Kelly Freas
- A Few Words from Robin (2010)
- A Filbert Is a Nut (1959)
- A Filbert Is a Nut (1959) with Freas
- A House by Any Other Name (1974)
- A House by Any Other Name (1974) with Kelly Freas
- A Little Intelligence (1958)
- A Little Intelligence (1958) with Freas
- A Little Oil ... (1952)
- A Little Oil ... (1952) with Freas
- A Little Oil ... [2] (1952)
- A Little Oil ... [2] (1952) with Freas
- A Little Oil ... [3] (1952)
- A Little Oil ... [3] (1952) with Freas
- A Little Pile (1953)
- A Little Pile (1953) with Freas
- A Little Pile [2] (1953)
- A Little Pile [2] (1953) with Freas
- A Long Way from Home (1980)
- A Long Way from Home (1980) with Kelly Freas
- A Long Way to Go (1965)
- A Long Way to Go (1965) with Kelly Freas
- A Matter of Gravity (1974)
- A Matter of Gravity (1974) with Kelly Freas
- A Matter of Gravity [2] (1974)
- A Matter of Gravity [2] (1974) with Kelly Freas
- A Matter of Gravity [3] (1974)
- A Matter of Gravity [3] (1974) with Kelly Freas
- A Matter of Perspective (1971)
- A Matter of Perspective (1971) with Kelly Freas
- A Matter of Perspective [2] (1971)
- A Matter of Perspective [2] (1971) with Kelly Freas
- A Matter of Perspective [3] (1971)
- A Matter of Perspective [3] (1971) with Kelly Freas
- A Matter of Perspective [4] (1971)
- A Matter of Perspective [4] (1971) with Kelly Freas
- A Matter of Perspective [5] (1971)
- A Matter of Perspective [5] (1971) with Kelly Freas
- A Matter of Perspective [6] (1971)
- A Matter of Perspective [6] (1971) with Kelly Freas
- A Matter of Security (1957)
- A Matter of Security (1957) with Freas
- A Matter of Security [2] (1957)
- A Matter of Security [2] (1957) with Freas
- A Matter of Security [3] (1957)
- A Matter of Security [3] (1957) with Freas
- A Nice Day for Screaming (1965)
- A Nice Day for Screaming (1965) with Kelly Freas
- A Pattern for Penelope (1954)
- A Pattern for Penelope (1954) with Kelly Freas
- A Real Bang-Up Job (2000)
- A Real Bang-Up Job (2000) with Kelly Freas
- A Separate Star (1985)
- A Sound of Thunder (1976)
- A Sound of Thunder (2020) with Kelly Freas
- A Spaceship for the King (1971)
- A Spaceship for the King (Part 1 of 3) (1971)
- A Spaceship for the King (Part 1 of 3) (1971) with Kelly Freas
- A Spaceship for the King (Part 1 of 3) [2] (1971)
- A Spaceship for the King (Part 1 of 3) [2] (1971) with Kelly Freas
- A Spaceship for the King (Part 2 of 3) (1972)
- A Spaceship for the King (Part 2 of 3) (1972) with Kelly Freas
- A Spaceship for the King (Part 2 of 3) [2] (1972)
- A Spaceship for the King (Part 2 of 3) [2] (1972) with Kelly Freas
- A Spaceship for the King (Part 3 of 3) (1972)
- A Spaceship for the King (Part 3 of 3) (1972) with Kelly Freas
- A Spaceship for the King (Part 3 of 3) [2] (1972)
- A Spaceship for the King (Part 3 of 3) [2] (1972) with Kelly Freas
- A Thing of Beauty (1973)
- A Thing of Beauty (1973) with Kelly Freas
- A Transatlantic Tunnel, Hurrah! (Part 1 of 3) (1972)
- A Transatlantic Tunnel, Hurrah! (Part 1 of 3) (1972) with Kelly Freas
- A Transatlantic Tunnel, Hurrah! (Part 1 of 3) [2] (1972)
- A Transatlantic Tunnel, Hurrah! (Part 1 of 3) [2] (1972) with Kelly Freas
- A Transatlantic Tunnel, Hurrah! (Part 1 of 3) [3] (1972)
- A Transatlantic Tunnel, Hurrah! (Part 1 of 3) [3] (1972) with Kelly Freas
- A Transatlantic Tunnel, Hurrah! (Part 2 of 3) (1972)
- A Transatlantic Tunnel, Hurrah! (Part 2 of 3) (1972) with Kelly Freas
- A Transatlantic Tunnel, Hurrah! (Part 2 of 3) [2] (1972)
- A Transatlantic Tunnel, Hurrah! (Part 2 of 3) [2] (1972) with Kelly Freas
- A Transatlantic Tunnel, Hurrah! (Part 2 of 3) [3] (1972)
- A Transatlantic Tunnel, Hurrah! (Part 2 of 3) [3] (1972) with Kelly Freas
- A Transatlantic Tunnel, Hurrah! (Part 3 of 3) (1972)
- A Transatlantic Tunnel, Hurrah! (Part 3 of 3) (1972) with Kelly Freas
- A Transatlantic Tunnel, Hurrah! (Part 3 of 3) [2] (1972)
- A Transatlantic Tunnel, Hurrah! (Part 3 of 3) [2] (1972) with Kelly Freas
- A Witch in Time (1955)
- A Witch in Time (1955) with Kelly Freas
- A Womanly Talent (1969)
- A Womanly Talent (1969) with Kelly Freas
- A Womanly Talent [2] (1969)
- A Womanly Talent [2] (1969) with Kelly Freas
- Achilles' Heel (1958)
- Achilles' Heel (1958) with Kelly Freas
- Achromamorph's Burden (2000)
- Achromamorph's Burden (2000) with Kelly Freas
- Age of Retirement (1954)
- Age of Retirement (1954) with Freas
- Aggravated Vehicular Genocide (1998)
- Aggravated Vehicular Genocide (1998) with Kelly Freas
- Aim for the Heel (1967)
- Aim for the Heel (1967) with Kelly Freas
- Aim for the Heel [2] (1967)
- Aim for the Heel [2] (1967) with Kelly Freas
- Albatross (1958)
- Albatross (1958) with Kelly Freas
- Albino (2000)
- Alef, #23 (1) [Serbian] (1991)
- All Around a Pig's Tale (1957)
- All Around a Pig's Tale (1957) with Freas
- Allamagoosa (1955) with Kelly Freas
- Allamagoosa (1955)
- Allamagoosa (1955) with Freas
- Amazing Science Fiction (1983)
- Amazon Planet (Part 1 of 3) (1966)
- Amazon Planet (Part 1 of 3) (1966) with Kelly Freas
- Amazon Planet (Part 1 of 3) [2] (1966)
- Amazon Planet (Part 1 of 3) [2] (1966) with Kelly Freas
- Amazon Planet (Part 2 of 3) (1967)
- Amazon Planet (Part 2 of 3) (1967) with Kelly Freas
- Amazon Planet (Part 2 of 3) [2] (1967)
- Amazon Planet (Part 2 of 3) [2] (1967) with Kelly Freas
- Amazon Planet (Part 3 of 3) (1967)
- Amazon Planet (Part 3 of 3) (1967) with Kelly Freas
- Amazon Planet (Part 3 of 3) [2] (1967)
- Amazon Planet (Part 3 of 3) [2] (1967) with Kelly Freas
- Ambassador to Verdammt (1967)
- Ambassador to Verdammt (1967) with Kelly Freas
- Ambassadors of Flesh (1976)
- Amour, Amour, Dear Planet! (1953)
- Amour, Amour, Dear Planet! (1953) with Kelly Freas
- An Open Letter ... to Readers of Amazing Science Fiction Stories (1982)
- An Open Letter ... to Readers of Amazing Science Fiction Stories (1982) with Kelly Freas
- An Ornament to His Profession (1966)
- An Ornament to His Profession (1966) with Kelly Freas
- An Ounce of Dissension (1966)
- An Ounce of Dissension (1966) with Kelly Freas
-
Analog Science Fiction — Science Fact, January 1966 (cover)?Analog Science Fiction - Science Fact, January 1966 (cover)(1999) with Kelly Freas
- Analog Science Fiction/Science Fact, August 1977 (2015) with uncredited
- Analog Science Fiction/Science Fact, December 1970 (cover) (1973)
- Analog Science Fiction/Science Fact, March 1971 (cover) (1973)
- Analog Science Fiction/Science Fact, May 1969 (2015) with Kelly Freas
- Analog, August 1982 (1984)
- Analog, December 1968 (1968)
- Analog, December 1972 (1972)
- Analog, February 1969 (1969)
- Analog, July 1973 (1973)
- Analog, June 1972 (1972)
- Analog, November 1973 (1973)
- Animal Farm (2000)
- Animal Farm (frontispiece) (1992)
- Anne and Bob Passovoy (2000)
- Anne and Bob Passovoy [2] (2000)
- Anne and Bob Passovoy [3] (2000)
- Anne and Bob Passovoy [4] (2000)
- Anne Passovoy (2000)
- Anniversaries (1980)
- Another Fine Myth (1978) with Kelly Freas
- Another Fine Myth (1978)
- Apocalipse 2000 [Portuguese] (1978)
- Apostle (1978)
- Apostle (1978) with Kelly Freas
- Apostle (1980) with Polly Freas
- Apostle (1980) with Kelly Freas and Polly Freas
- Apostle (frontispiece) (1978)
- Apostle (frontispiece) (1978) with Kelly Freas
- Apostle [2] (1978)
- Apostle [2] (1978) with Kelly Freas
- Apostle [2] (1980) with Polly Freas
- Apostle [2] (1980) with Kelly Freas and Polly Freas
- Apostle [3] (1978)
- Apostle [3] (1978) with Kelly Freas
- Apostle [3] (1980) with Polly Freas
- Apostle [3] (1980) with Kelly Freas and Polly Freas
- Apostle [4] (1978)
- Apostle [4] (1978) with Kelly Freas
- Apostle [4] (1980) with Polly Freas
- Apostle [4] (1980) with Kelly Freas and Polly Freas
- Apostle [5] (1978)
- Apostle [5] (1978) with Kelly Freas
- Apostle [5] (1980) with Polly Freas
- Apostle [5] (1980) with Kelly Freas and Polly Freas
- Apostle [6] (1980) with Polly Freas
- Apostle [6] (1980) with Kelly Freas and Polly Freas
- Apron Chains (1970)
- Apron Chains (1970) with Kelly Freas
- Aquila Meets Bigfoot (1983)
- Aquila: The Final Conflict (1983)
- Archie Bunker goes to the Stars (1979)
- Aristotle and the Gun (1958)
- Aristotle and the Gun (1958) with Freas
- Aristotle and the Gun [2] (1958)
- Aristotle and the Gun [2] (1958) with Freas
- Aristotle and the Gun [3] (1958)
- Aristotle and the Gun [3] (1958) with Freas
- Aristotle and the Gun [4] (1958)
- Aristotle and the Gun [4] (1958) with Freas
- Armada (2000)
- Astounding Science Fiction, February 1956 (cover) (1999) with Kelly Freas
- Astounding Science Fiction, February 1959 (cover) (1999) with Kelly Freas
- Astounding Science Fiction, January 1959 [German] (1959) with Kelly Freas
- Astounding Science Fiction, July 1957 (1977)
- Astounding Science Fiction, July 1958 (1958)
- Astounding Science Fiction, July 1958 (2020) with uncredited
- Astounding Science Fiction, October 1953 (1975) with Kelly Freas
- Astounding Science Fiction, October 1953 (cover) (1975)
- Astounding Science Fiction, October 1953 (cover) (1999) with Kelly Freas
- Astounding Science Fiction, September 1954 (cover) (1975)
- Aurora, March 1974 (1974)
- Aurora, March 1974 (1974) with Kelly Freas
- Axioms for Everybody (1957)
- Axioms for Everybody (1957) with Freas
- Back to Nature (1956)
- Back to Nature (1956) with Kelly Freas
- Backfire (1999)
- Backfire (1999) with Kelly Freas
- Backstage Lensman (1978)
- Backstage Lensman (1978) with Kelly Freas
- Ballroom of the Skies (Complete Novel) (1953)
- Ballroom of the Skies (Complete Novel) (1953) with Kelly Freas
- Basic Agreement (1958)
- Basic Agreement (1958) with Freas
- Basic Right (1958)
- Basic Right (1958) with Freas
- Basic Right [2] (1958)
- Basic Right [2] (1958) with Freas
- Basic Right [3] (1958)
- Basic Right [3] (1958) with Freas
- Bat Durston, Space Marshal (1978)
- Bat Durston, Space Marshal (1978) with Kelly Frank Freas
- Beak by Beak (1967)
- Beak by Beak (1967) with Kelly Freas
- Beast of Prey (1957)
- Beast of Prey (1957) with Freas
- Beast of Prey [2] (1957)
- Beast of Prey [2] (1957) with Freas
- Beau Farcson Regrets (1970)
- Beau Farcson Regrets (1970) with Kelly Freas
- Beehive (Part 1 of 2) (1965)
- Beehive (Part 1 of 2) (1965) with Kelly Freas
- Beehive (Part 1 of 2) [2] (1965)
- Beehive (Part 1 of 2) [2] (1965) with Kelly Freas
- Beehive (Part 2 of 2) (1966)
- Beehive (Part 2 of 2) (1966) with Kelly Freas
- Beehive (Part 2 of 2) [2] (1966)
- Beehive (Part 2 of 2) [2] (1966) with Kelly Freas
- Beyond the Door (1955)
- Beyond the Door (1955) with Freas
- Beyond the X Ecliptic (1976)
- Beyond the X Ecliptic (2020) with Kelly Freas
- Big Sword (1958) with Freas
- Big Sword (1958)
- Big Sword [2] (1958)
- Big Sword [2] (1958) with Freas
- Big Sword [3] (1958)
- Big Sword [3] (1958) with Freas
- Big Sword [4] (1958)
- Big Sword [4] (1958) with Freas
- Big Sword [5] (1958)
- Big Sword [5] (1958) with Freas
- Bill for Delivery (1964)
- Bill for Delivery (1964) with Kelly Freas
- Bill for Delivery [2] (1964)
- Bill for Delivery [2] (1964) with Kelly Freas
- Biological Peacefare (1973)
- Biological Peacefare (1973) with Kelly Freas
- Birth of a Salesman (1968)
- Birth of a Salesman (1968) with Kelly Freas
- Birthright (1955)
- Birthright (1955) with Kelly Freas
- Birthright (1970) with Kelly Freas
- Birthright [2] (1970)
- Birthright [2] (1970) with Kelly Freas
- Black Sheep Astray (1973)
- Black Sheep Astray (1973) with Kelly Freas
- Blessed Are the Meek (1955)
- Blessed Are the Meek (1955) with Freas
- Brake (1957)
- Brake (1957) with Freas
- Brake [2] (1957)
- Brake [2] (1957) with Freas
- Brake [3] (1957)
- Brake [3] (1957) with Freas
- Brake [4] (1957)
- Brake [4] (1957) with Freas
- Brave New Word (1954)
- Brave New Word (1954) with Kelly Freas
- Breakaway (1955)
- Breakaway (1955) with Freas
- Breckenridge and the Continuum (1979)
- Breckenridge and the Continuum (1979) with Kelly Freas
- Breeder Reaction (1954)
- Breeder Reaction (1954) with Kelly Freas
- Breeder Reaction (2012) with Freas
- Brillo (1970)
- Brillo (1970) with Kelly Freas
- Brillo [2] (1970)
- Brillo [2] (1970) with Kelly Freas
- Brink of Madness (1953)
- Brink of Madness (1953) with Kelly Freas
- Brothers (1973)
- Brothers (1973) with Kelly Freas
- Brothers (1997)
- Brothers (frontispiece) (1996)
- Bug in the Witches' Hat (1977)
- Bug Jack Barron (2000)
- Bug Jack Barron (frontispiece) (1993)
- Burden of Proof (1967)
- Burden of Proof (1967) with Kelly Freas
- But I Don't Think (1959)
- But Mainly by Cunning (1970)
- But Mainly by Cunning (1970) with Kelly Freas
- But Mainly by Cunning [2] (1970)
- But Mainly by Cunning [2] (1970) with Kelly Freas
- But, I Don't Think (1959)
- But, I Don't Think (1959) with Kelly Freas
- But, I Don't Think [2] (1959)
- But, I Don't Think [2] (1959) with Freas
- But, I Don't Think [3] (1959)
- But, I Don't Think [3] (1959) with Freas
- But, I Don't Think [4] (1959)
- But, I Don't Think [4] (1959) with Freas
- But, I Don't Think [magazine cover] (reprint) (2007)
- But, I Don't Think [magazine cover] (reprint) (2007) with Kelly Freas
- By the Book (1966)
- By the Book (1966) with Kelly Freas
- By the Book [2] (1966)
- By the Book [2] (1966) with Kelly Freas
- Cage of a Thousand Wings (1955)
- Cage of a Thousand Wings (1955) with Kelly Freas
- Calculated Decision (1956)
- Calculated Decision (1956) with Kelly Freas
- Call Him Dead (Part 1 of 3) (1955)
- Call Him Dead (Part 1 of 3) (1955) with Freas
- Call Him Dead (Part 1 of 3) [2] (1955)
- Call Him Dead (Part 1 of 3) [2] (1955) with Freas
- Call Him Dead (Part 1 of 3) [3] (1955)
- Call Him Dead (Part 1 of 3) [3] (1955) with Freas
- Call Him Dead (Part 1 of 3) [4] (1955)
- Call Him Dead (Part 1 of 3) [4] (1955) with Freas
- Call Him Dead (Part 1 of 3) [5] (1955)
- Call Him Dead (Part 1 of 3) [5] (1955) with Freas
- Call Him Dead (Part 2 of 3) (1955)
- Call Him Dead (Part 2 of 3) (1955) with Freas
- Call Him Dead (Part 2 of 3) [2] (1955)
- Call Him Dead (Part 2 of 3) [2] (1955) with Freas
- Call Him Dead (Part 2 of 3) [3] (1955)
- Call Him Dead (Part 2 of 3) [3] (1955) with Freas
- Call Him Dead (Part 2 of 3) [4] (1955)
- Call Him Dead (Part 2 of 3) [4] (1955) with Freas
- Call Him Dead (Part 2 of 3) [5] (1955)
- Call Him Dead (Part 2 of 3) [5] (1955) with Freas
- Call Him Dead (Part 3 of 3) (1955)
- Call Him Dead (Part 3 of 3) (1955) with Freas
- Call Him Dead (Part 3 of 3) [2] (1955)
- Call Him Dead (Part 3 of 3) [2] (1955) with Freas
- Call Him Dead (Part 3 of 3) [3] (1955)
- Call Him Dead (Part 3 of 3) [3] (1955) with Freas
- Call Him Dead (Part 3 of 3) [4] (1955)
- Call Him Dead (Part 3 of 3) [4] (1955) with Freas
- Call Him Dead (Part 3 of 3) [5] (1955)
- Call Him Dead (Part 3 of 3) [5] (1955) with Freas
- Call Him Lord (1966)
- Call Him Lord (1966) with Kelly Freas
- Call Me Joe (1957)
- Call Me Joe (1957)
- Call Me Joe (1957) with Freas
- Call Me Joe [2] (1957)
- Call Me Joe [2] (1957) with Freas
- Call Me Joe [3] (1957)
- Call Me Joe [3] (1957) with Freas
- Call Me Joe [4] (1957)
- Call Me Joe [4] (1957) with Freas
- Campbell's World (1993)
- Capricorn Games (1978)
- Capricorn Games (1979)
- Capricorn Games (1979) with Kelly Freas
- Captive Market (1955)
- Captive Market (1955) with Kelly Freas
- Cartoon: "Er - suppose Isabella had said "NO!"" (1972)
- Cartoon: "Er - suppose Isabella had said "NO!"" (1972) with Kelly Freas
- Cartoon: "It is easier to see something if you know what you're looking for ... " (1966)
- Cartoon: "It is easier to see something if you know what you're looking for ... " (1966) with Kelly Freas
-
Cartoon: "So—relocate!"?Cartoon: "So-relocate!"(1966)
- Cartoon: "So—relocate!" (1966) with Kelly Freas
-
Cartoon: "—One word is worth a thousand pictures ... "?Cartoon: "-One word is worth a thousand pictures ... "(1966)
- Cartoon: "—One word is worth a thousand pictures ... " (1966) with Kelly Freas
- Castaways in Time (1979)
- Castaways in Time (1979) with Kelly Freas
- Cat O' Nine Tales (1957)
- Cat O' Nine Tales (1957) with Freas
- Catch 'Em All Alive! (1956)
- Catch 'Em All Alive! (1956) with Kelly Freas
- Catch 'em All Alive! [2] (1956)
- Catch 'Em All Alive! [2] (1956) with Kelly Freas
- Catherine & Sprague de Camp (1991)
- Catherine & Sprague de Camp (1991) with Kelly Freas
- Cease Fire (1958)
- Cease Fire (1958)
- Cease Fire (1958) with Freas
- Cease Fire (1958) with Freas
- Cease Fire [2] (1958)
- Cease Fire [2] (1958)
- Cease Fire [2] (1958) with Freas
- Cease Fire [2] (1958) with Freas
- Cease Fire [3] (1958)
- Cease Fire [3] (1958) with Freas
- Cease Fire [3] (1958) with Freas
- Ceramic Incident (1956)
- Ceramic Incident (1956) with Freas
- Chain Reaction (1957)
- Chain Reaction (1957) with Freas
- Chain Reaction [2] (1957)
- Chain Reaction [2] (1957) with Freas
- Chain Reaction [3] (1957)
- Chain Reaction [3] (1957) with Freas
- Chains of Command (1956)
- Chains of Command (1956) with Freas
- Chesley Award: Award for Artistic Achievement (1995)
- Chicon IV: Program Book (cover) (1982)
- Child of the Gods (1972)
- Child of the Gods (1972) with Kelly Freas
- Child of the Gods [2] (1972)
- Child of the Gods [2] (1972) with Kelly Freas
- Children of Fortune (1957)
- Children of Fortune (1957) with Freas
- Chrome Pastures (1956)
- Chrome Pastures (1956) with Kelly Freas
- Citadel of Lost Ships (1943)
- Citadel of Lost Ships (1943) with Kelly Freas
- City (1984)
- Classicism (1969)
- Classicism (1969) with Kelly Freas
- Clerical Error (1956)
- Clerical Error (1956) with Freas
- Clerical Error [2] (1956)
- Clerical Error [2] (1956) with Freas
- Clerical Error [3] (1956)
- Clerical Error [3] (1956) with Freas
- Clerical Error [4] (1956)
- Clerical Error [4] (1956) with Freas
- Cloud's Rider (2000)
- Cloud's Rider (frontispiece) (1996)
- Code in the Head (1956)
- Code in the Head (1956) with Kelly Freas
- Cold Cash War (1977)
- Cold Cash War (1977) with Kelly Freas
- Cold Cash War [2] (1977)
- Cold Cash War [2] (1977) with Kelly Freas
- Cold Cash War [3] (1977)
- Cold Cash War [3] (1977) with Kelly Freas
- Cold War (1989)
- Cold War (1989) with Kelly Freas
- Cold War [2] (1989)
- Cold War [2] (1989) with Kelly Freas
- Collision (1984)
- Community Property (1954)
- Community Property (1954) with Kelly Freas
- Company Planet (1971)
- Company Planet (1971) with Kelly Freas
- Company Planet [2] (1971)
- Company Planet [2] (1971) with Kelly Freas
- Compound Interest (1967)
- Compound Interest (1967) with Kelly Freas
- Compulsion (1970)
- Compulsion (1970) with Kelly Freas
- Compulsion [2] (1970)
- Compulsion [2] (1970) with Kelly Freas
- Computer War (Part 1 of 2) (1967)
- Computer War (Part 1 of 2) (1967) with Kelly Freas
- Computer War (Part 1 of 2) [2] (1967)
- Computer War (Part 1 of 2) [2] (1967) with Kelly Freas
- Computer War (Part 2 of 2) (1967)
- Computer War (Part 2 of 2) (1967) with Kelly Freas
- Computer War (Part 2 of 2) [2] (1967)
- Computer War (Part 2 of 2) [2] (1967) with Kelly Freas
- Concepts (1985)
- Concepts (1985) with Kelly Freas
- Confederation Matador (1978) with Polly Freas
- Confederation Matador (1978)
- Confederation Matador (1978) with Kelly Freas
- ConFederation: 44th World Science Fiction Convention Progress Report, July 1986 (cover) (1986)
- Conquest by Default (1968)
- Conquest by Default (1968) with Kelly Freas
- Conquest by Default [2] (1968)
- Conquest by Default [2] (1968) with Kelly Freas
- Conscience Interplanetary (1984)
- Contact Point (1954)
- Contact Point (1954) with Kelly Freas
- Contrast (1964)
- Contrast (1964) with Kelly Freas
- Country Mouse (1991)
- Coup (1967)
- Coup (1967) with Kelly Freas
- Coup [2] (1967)
- Coup [2] (1967) with Kelly Freas
- Coutourier (1977)
- Cover art for Original SF Stories, November 1955 (2017)
- Cover art for The Magazine of F&SF (1956) (2017)
- Cover of "Against the Fall of Night", Gnome Press edition (1953)
- Cover of Genre Comic Magazine: "Unknown Worlds of Science Fiction", #1: January 1975 (2022) with John Romita
- Cover of Genre Comic Magazine: "Unknown Worlds of Science Fiction", #1: January 1975 (2022) with Kelly Freas and John Romita
- Cows Can't Eat Grass (1967)
- Cows Can't Eat Grass (1967) with Kelly Freas
- Crash Landing on Iduna (1977)
- Criminal Negligence (1955)
- Criminal Negligence (1955) with Freas
- Criminal Negligence [2] (1955)
- Criminal Negligence [2] (1955) with Freas
- Criminal Negligence [3] (1955)
- Criminal Negligence [3] (1955) with Freas
- Criteria (1952)
- Criteria (1952) with Freas
- Crying Willow (1973)
- Crying Willow (1973) with Kelly Freas
- Cure, Guaranteed (1954)
- Cure, Guaranteed (1954) with Kelly Freas
- Danger - Human! (1957)
- Danger - Human! (1957) with Freas
- Danger - Human! [2] (1957)
- Danger - Human! [2] (1957) with Freas
- Dark Lantern (1974)
- Dark Lantern (1974) with Kelly Freas
- Dark Lantern [2] (1974)
- Dark Lantern [2] (1974) with Kelly Freas
- Dead End (1967)
- Dead End (1967) with Kelly Freas
- Dead on Departure (1954)
- Dead on Departure (1954) with Freas
- Deadline Job: Teamwork, That's What Does It! (1957)
- Dear Devil (1966)
- Dear Devil (1966) with Kelly Freas
- Debt in Kind (1990) with Laura Brodian Freas
- Debt in Kind (1990) with Laura Kelly-Freas
- Debt in Kind [2] (1990) with Laura Brodian Freas
- Debt in Kind [2] (1990) with Laura Kelly-Freas
- Debt in Kind [3] (1990) with Laura Brodian Freas
- Debt in Kind [3] (1990) with Laura Kelly-Freas
- Debt in Kind [4] (1990) with Laura Brodian Freas
- Debt in Kind [4] (1990) with Laura Kelly-Freas
- Delivered with Feeling (1965)
- Delivered with Feeling (1965) with Kelly Freas
- Des colons pour Vénus [French] (1954)
- Despoilers of the Golden Empire (1959) with Kelly Freas
- Despoilers of the Golden Empire (1959)
- Despoilers of the Golden Empire (1959) with Freas
- Despoilers of the Golden Empire (1959)
- Despoilers of the Golden Empire (reprint) (2007)
- Despoilers of the Golden Empire (reprint) (2007) with Freas
- Despoilers of the Golden Empire [2] (1959)
- Despoilers of the Golden Empire [2] (1959) with Freas
- Despoilers of the Golden Empire [2] (reprint) (2007)
- Despoilers of the Golden Empire [2] (reprint) (2007) with Freas
- Despoilers of the Golden Empire [3] (1959)
- Despoilers of the Golden Empire [3] (1959) with Freas
- Despoilers of the Golden Empire [3] (reprint) (2007)
- Despoilers of the Golden Empire [3] (reprint) (2007) with Freas
- Despoilers of the Golden Empire [4] (1959)
- Despoilers of the Golden Empire [4] (1959) with Freas
- Despoilers of the Golden Empire [4] (1959) with Freas
- Despoilers of the Golden Empire [4] (reprint) (2007)
- Despoilers of the Golden Empire [4] (reprint) (2007) with Freas
- Despoilers of the Golden Empire [5] (1959)
- Despoilers of the Golden Empire [5] (1959) with Freas
- Despoilers of the Golden Empire [5] (1959) with Freas
- Despoilers of the Golden Empire [5] (reprint) (2007)
- Despoilers of the Golden Empire [5] (reprint) (2007) with Freas
- Diabologic (1955)
- Diabologic (1955) with Freas
- Diabologic [2] (1955)
- Diabologic [2] (1955) with Freas
- Dinosaur Beach (2000)
- Discussing Science Fiction Illustration with Kelly Freas (1973)
- Displaced Person (1966)
- Displaced Person (1966) with Kelly Freas
- Disqualified (1954)
- Disqualified (1954) with Kelly Freas
- Disturbing Sun (1959)
- Disturbing Sun (1959) with Freas
- Disturbing Sun (reprint) (2008)
- Disturbing Sun (reprint) (2008) with Freas
- Divine Right (1957)
- Divine Right (1957) with Freas
- Divine Right [2] (1957)
- Divine Right [2] (1957) with Freas
- Divine Right [3] (1957)
- Divine Right [3] (1957) with Freas
- Divinity (1953)
- Divinity (1953) with Freas
- Divinity (reprint) (2007)
- Divinity (reprint) (2007) with Freas
- Doing Well While Doing Good (1975)
- Doing Well While Doing Good (1975) with Kelly Freas
- Dominant Species (1979)
- Dominant Species (1979) with Kelly Freas
- Door into Summer (1977)
- Double Date (1955)
- Double in Brass (1979)
- Double Star (2003)
- Double Star (Part 1 of 3) (1956)
- Double Star (Part 1 of 3) (1956) with Freas
- Double Star (Part 1 of 3) [2] (1956)
- Double Star (Part 1 of 3) [2] (1956) with Freas
- Double Star (Part 1 of 3) [3] (1956)
- Double Star (Part 1 of 3) [3] (1956) with Freas
- Double Star (Part 1 of 3) [4] (1956)
- Double Star (Part 1 of 3) [4] (1956) with Freas
- Double Star (Part 1 of 3) [5] (1956)
- Double Star (Part 1 of 3) [5] (1956) with Freas
- Double Star (Part 2 of 3) (1956)
- Double Star (Part 2 of 3) (1956) with Freas
- Double Star (Part 2 of 3) [2] (1956)
- Double Star (Part 2 of 3) [2] (1956) with Freas
- Double Star (Part 2 of 3) [3] (1956)
- Double Star (Part 2 of 3) [3] (1956) with Freas
- Double Star (Part 2 of 3) [4] (1956)
- Double Star (Part 2 of 3) [4] (1956) with Freas
- Double Star (Part 2 of 3) [5] (1956)
- Double Star (Part 2 of 3) [5] (1956) with Freas
- Double Star (Part 2 of 3) [6] (1956)
- Double Star (Part 2 of 3) [6] (1956) with Freas
- Double Star (Part 3 of 3) (1956)
- Double Star (Part 3 of 3) (1956) with Freas
- Double Star (Part 3 of 3) [2] (1956)
- Double Star (Part 3 of 3) [2] (1956) with Freas
- Double Star (Part 3 of 3) [3] (1956)
- Double Star (Part 3 of 3) [3] (1956) with Freas
- Double Star (Part 3 of 3) [4] (1956)
- Double Star (Part 3 of 3) [4] (1956) with Freas
- Double Star (Part 3 of 3) [5] (1956)
- Double Star (Part 3 of 3) [5] (1956) with Freas
- Down Styphon! (1965)
- Down Styphon! (1965) with Kelly Freas
- Down Styphon! [2] (1965)
- Down Styphon! [2] (1965) with Kelly Freas
- Dragon's Teeth (1969)
- Dragon's Teeth (1969) with Kelly Freas
- Dragon's Teeth [2] (1969)
- Dragon's Teeth [2] (1969) with Kelly Freas
- Dune (Caedmon Records) (1977)
- Duplex (1968)
- Duplex (1968) with Kelly Freas
- Duplex [2] (1968)
- Duplex [2] (1968) with Kelly Freas
- Dust Unto Dust (1955)
- Dust Unto Dust (1955) with Kelly Freas
- Dying Inside (2000)
- Dying Inside (frontispiece) (1991)
- Dying Inside cover art for Easton Press, 1991 (2023)
- Dying Inside cover art for Easton Press, 1991 (2023) with Kelly Freas
- Early Bird (1973)
- Early Bird (1973) with Kelly Freas
- Earthquake (1973)
- Earthquake (1973) with Kelly Freas
- Earthquake [2] (1973)
- Earthquake [2] (1973) with Kelly Freas
- Ecological Niche (1970)
- Ecological Niche (1970) with Kelly Freas
- Ecological Niche [2] (1970)
- Ecological Niche [2] (1970) with Kelly Freas
- Ecological Niche [3] (1970)
- Ecological Niche [3] (1970) with Kelly Freas
- Ecology Now! (1971)
- Ecology Now! (1971) with Kelly Freas
- Eden Tag (2000)
- Eden Tag (2000) with Kelly Freas
- Editorial (1954)
- Editorial: Escape to Reality? (1980)
- Editorial: Extraordinary Voyages (1978)
- Editorial: Hints (1979)
-
Ein Tropfen Öl?Ein Tropfen Oel[German] (1958) with Freas
-
Ein Tropfen Öl [2]?Ein Tropfen Oel [2][German] (1958) with Freas
-
Ein Tropfen Öl [3]?Ein Tropfen Oel [3][German] (1958) with Freas
- Election Day (1971)
- Elementary Mistake (1967)
- Elementary Mistake (1967) with Kelly Freas
- Entrevue : Frank Kelly Freas [French] (1985)
- Entrevue : Frank Kelly Freas [2] [French] (1985)
- Entrevue : Frank Kelly Freas [3] [French] (1985)
- Epilog (1973)
- Epilog (1973) with Kelly Freas
- Escape Felicity (1966)
- Escape Felicity (1966) with Kelly Freas
- Excerpts from the Discussion of the Controlled Vibration Theory of Communication Among the Un-Kin (1994)
- Excerpts from the Discussion of the Controlled Vibration Theory of Communication Among the Un-Kin (1994) with Kelly Freas
- Exile (1954)
- Exile (1954) with Kelly Freas
- Exile [2] (1954)
- Exile [2] (1954) with Kelly Freas
- Exile [3] (1954)
- Exile [3] (1954) with Kelly Freas
- Exile [4] (1954)
- Exile [4] (1954) with Kelly Freas
- Exile [5] (1954)
- Exile [5] (1954) with Kelly Freas
- Exile to Hell (1968)
- Exile to Hell (1968) with Kelly Freas
-
Exodus—Genesis?Exodus-Genesis(1970)
- Exodus—Genesis (1970) with Kelly Freas
- Experts In the Field (1967)
- Experts In the Field (1967) with Kelly Freas
- Explosion Delayed (1953)
- Explosion Delayed (1953) with Freas
- Facts to Fit the Theory (1966)
- Facts to Fit the Theory (1966) with Kelly Freas
- Fair and Warmer (1954)
- Fair and Warmer (1954) with Paul Orban (in error)
- False Image (1958)
- False Image (1958) with Freas
- Familiar Pattern (1959)
- Familiar Pattern (1959) with Freas
- Familiar Pattern [2] (1959)
- Familiar Pattern [2] (1959) with Freas
- Familiar Pattern [3] (1959)
- Familiar Pattern [3] (1959) with Freas
- Fantastic Universe Science Fiction, June 1955 (cover) (1999) with Kelly Freas
- Fantastic Universe, April 1955 (2017) with Freas
- Fantastic Universe, April 1955 (cover) (1999) with Kelly Freas
- Far from Somewhere (1958)
- Far from Somewhere (1958) with Freas
- Farside Station (1985)
- Farside Station (1985) with Kelly Freas
- Fear Hound (1968)
- Fear Hound (1968) with Kelly Freas
- Feline Red (1954)
- Feline Red (1954) with Kelly Freas
- Field Expedient (1955)
- Field Expedient (1955) with Freas
- Field Expedient [2] (1955)
- Field Expedient [2] (1955) with Freas
- Field Expedient [3] (1955)
- Field Expedient [3] (1955) with Freas
- Field Expedient [5] (1955)
- Field Expedient [5] (1955) with Freas
- Field Trip (1956)
- Field Trip (1956) with Kelly Freas
- Fiesta Brava (1967)
- Fiesta Brava (1967) with Kelly Freas
- Fiesta Brava [2] (1967)
- Fiesta Brava [2] (1967) with Kelly Freas
- Fiesta Brava [3] (1967)
- Fiesta Brava [3] (1967) with Kelly Freas
- Fighting Philosopher (1954)
- Fighting Philosopher (1954) with Freas
- Fighting Philosopher [2] (1954)
- Fighting Philosopher [2] (1954) with Freas
- Fighting Philosopher [3] (1954)
- Fighting Philosopher [3] (1954) with Freas
- Fighting Philosopher [4] (1954)
- Fighting Philosopher [4] (1954) with Freas
- Finish Line (1977)
- Finnegan's Knack (1965)
- Finnegan's Knack (1965) with Kelly Freas
- Flare Time (1985)
- Flare Time (1985) with Kelly Freas
- Foghead (1958)
- Foghead (1958) with Freas
- Foghead [2] (1958)
- Foghead [2] (1958) with Freas
- Foghead [3] (1958)
- Foghead [3] (1958) with Freas
- Foghead [4] (1958)
- Foghead [4] (1958) with Freas
- Foghead [5] (1958)
- Foghead [5] (1958) with Freas
- Foghead [6] (1958)
- Foghead [6] (1958) with Freas
- Folio of the Kelly Freas Art from "Lorelei of the Red Mist" (1953)
- Forgotten Danger (1953)
- Forgotten Danger (1953) with Kelly Freas
- Forsyte's Retreat (1954)
- Forsyte's Retreat (1954) with Kelly Freas
- Forsyte's Retreat (2012) with Freas
- Foundlings Father (1971)
- Foundlings Father (1971) with Kelly Freas
- Foundlings Father [2] (1971)
- Foundlings Father [2] (1971) with Kelly Freas
- Foundlings Father [3] (1971)
- Foundlings Father [3] (1971) with Kelly Freas
- Frank Kelly Freas (1978)
- Frank Kelly Freas (1987)
- Frank Kelly Freas [10] (1987)
- Frank Kelly Freas [11] (1987)
- Frank Kelly Freas [12] (1987)
- Frank Kelly Freas [13] (1987)
- Frank Kelly Freas [2] (1987)
- Frank Kelly Freas [3] (1987)
- Frank Kelly Freas [4] (1987)
- Frank Kelly Freas [5] (1987)
- Frank Kelly Freas [6] (1987)
- Frank Kelly Freas [7] (1987)
- Frank Kelly Freas [8] (1987)
- Frank Kelly Freas [9] (1987)
- Frank Kelly Freas: Land of the Freas (2002)
- From the Dust Returned (2020) with Kelly Freas
- From the Dust Returned (frontispiece) (2001)
- From This Day Forward (1977)
- FTA (1974)
- FTA (1974) with Kelly Freas
- Full Cycle (1955)
- Full Cycle (1955) with Kelly Freas
- Full Cycle (1977)
- Future Science Fiction, October 1954 (cover) (1999) with Kelly Freas
- Gallagher's Glacier (1964)
- Gallagher's Glacier (1964) with Kelly Freas
- Genesis 500 (1972)
- Genesis 500 (1972) with Kelly Freas
- Gentlemen: Please Note (1957)
- Gentlemen: Please Note (1957) with Freas
- Gentlemen: Please Note [2] (1957)
- Gentlemen: Please Note [2] (1957) with Freas
- Gentlemen: Please Note [3] (1957)
- Gentlemen: Please Note [3] (1957) with Freas
- Getting Across (1979)
- Getting Across (1979) with Kelly Freas
- Giants in the Earth (1956)
- Giants in the Earth (1956) with Kelly Freas
- Glory Day (1971)
- Glory Day (1971) with Kelly Freas
- Glory Day [2] (1971)
- Glory Day [2] (1971) with Kelly Freas
- Golden Age Ahead (1976)
- Gone with the Gods (1974)
- Gone with the Gods (1974) with Kelly Freas
- Gone with the Gods [2] (1974)
- Gone with the Gods [2] (1974) with Kelly Freas
- Good Taste (1977)
- Good Taste [2] (1977)
- Grandma Perkins and the Space Pirates (1954)
- Grandma Perkins and the Space Pirates (1954) with Kelly Freas
- Grandpa (1955)
- Grandpa (1955) with Kelly Freas
- Grandpa (1955)
- Grandpa [2] (1955)
- Grandpa [2] (1955)
- Grandpa [2] (1955) with Kelly Freas
- Grandpa [3] (1955)
- Grandpa [3] (1955) with Kelly Freas
- Gremlins, Go Home! (1974)
- Gremlins, Go Home! (1974) with Kelly Freas
- Guests of Honor: The de Camps (1984)
- Guests of Honor: The de Camps (1984) with Kelly Freas
- Guppy (1958)
- Guppy (1958) with Freas
- Guppy [2] (1958)
- Guppy [2] (1958) with Freas
- Hail to the Chief (1954)
- Hail to the Chief (1954) with Freas
- Half a Loaf (1965)
- Half a Loaf (1965) with Kelly Freas
- Half a Loaf [2] (1965)
- Half a Loaf [2] (1965) with Kelly Freas
- Half a Loaf [3] (1965)
- Half a Loaf [3] (1965) with Kelly Freas
- Half an Oaf (1976)
- Half an Oaf (1976) with Kelly Freas
- Happy Rain Night (1953)
- Happy Rain Night (1953) with Kelly Freas
- Hard to Be a God (1978) with Kelly Freas
- Hard to Be a God (cover) (2021)
- Harvest Time (1958)
- Harvest Time (1958) with Freas
- Harvest Time [2] (1958)
- Harvest Time [2] (1958) with Freas
- Harvest Time [3] (1958)
- Harvest Time [3] (1958) with Freas
- Haut Clare (2000)
- Have Space Suit - Will Travel (2000)
- Hawk Among the Sparrows (1968)
- Hawk Among the Sparrows (1968) with Kelly Freas
- Hawk Among the Sparrows [2] (1968)
- Hawk Among the Sparrows [2] (1968) with Kelly Freas
- He Says He's from WHERE??!! (1997)
- Heir Reluctant (1958)
- Heir Reluctant (1958) with Freas
- Heir Reluctant [2] (1958)
- Heir Reluctant [2] (1958) with Freas
- Heir Reluctant [3] (1958)
- Heir Reluctant [3] (1958) with Freas
- Heir Reluctant [4] (1958)
- Heir Reluctant [4] (1958) with Freas
- Heir Reluctant [5] (1958)
- Heir Reluctant [5] (1958) with Freas
- Helix the Cat (1973)
- Helix the Cat (1973) with Kelly Freas
- Hell's Gate (1977)
- Helper (1954)
- Helper (1954) with Freas
- Here, There Be Witches (1970)
- Here, There Be Witches (1970) with Kelly Freas
- Here, There Be Witches [2] (1970)
- Here, There Be Witches [2] (1970) with Kelly Freas
- Heretic in a Balloon (1977)
- Heretic in a Balloon (1986)
- Heretic in a Balloon [10] (1977)
- Heretic in a Balloon [2] (1977)
- Heretic in a Balloon [3] (1977)
- Heretic in a Balloon [4] (1977)
- Heretic in a Balloon [5] (1977)
- Heretic in a Balloon [6] (1977)
- Heretic in a Balloon [7] (1977)
- Heretic in a Balloon [8] (1977)
- Heretic in a Balloon [9] (1977)
- Hero (1972)
- Hero (1972) with Kelly Freas
- Hero [2] (1972)
- Hero [2] (1972) with Kelly Freas
- Heroes (1990)
- Heroes (1990) with Kelly Freas
- Heroes [2] (1990)
- Heroes [2] (1990) with Kelly Freas
- High Justice (1974)
- High Justice (1974) with Kelly Freas
- High Justice [2] (1974)
- High Justice [2] (1974) with Kelly Freas
- Highway J (1953)
- Highway J (1953) with Kelly Freas
- Hints (1979)
- His Master's Vice (1968)
- His Master's Vice (1968) with Kelly Freas
- Hoax (1955)
- Hoax (1955) with Kelly Freas
- Home Is the Spaceman (1953)
- Home Is the Spaceman (1953) with Freas
- Homecalling (1956)
- Homecalling (1956) with Freas
- Homecalling [2] (1956)
- Homecalling [2] (1956) with Freas
- Homecalling [3] (1956)
- Homecalling [3] (1956) with Freas
- Hot Potato (1957)
- Hot Potato (1957) with Freas
- Hot Potato [2] (1957)
- Hot Potato [2] (1957) with Freas
- How Allied (1957)
- How Allied (1957) with Freas
- How Allied [2] (1957)
- How Allied [2] (1957) with Freas
- How Allied [3] (1957)
- How Allied [3] (1957) with Freas
- How I Lost the Second World War and Helped Turn Back the German Invasion (1973)
- How I Lost the Second World War and Helped Turn Back the German Invasion (1973) with Kelly Freas
- How to Learn Martian (1955)
- How to Learn Martian (1955) with Freas
- How to Learn Martian [2] (1955)
- How to Learn Martian [2] (1955) with Freas
- Hoydons Aweigh! (1954)
- Hoydons Aweigh! (1954) with Kelly Freas
- Humpty Dumpty (1953)
- Humpty Dumpty (1953) with Freas
- Humpty Dumpty (1953)
- Humpty Dumpty [2] (1953)
- Humpty Dumpty [2] (1953)
- Humpty Dumpty [2] (1953) with Freas
- Humpty Dumpty [3] (1953)
- Humpty Dumpty [3] (1953)
- Humpty Dumpty [3] (1953) with Freas
- Humpty Dumpty [4] (1953)
- Humpty Dumpty [4] (1953) with Freas
- Humpty Dumpty [5] (1953)
- Humpty Dumpty [5] (1953) with Freas
- Hunter's Moon (1985)
- Hunter's Moon (1985) with Kelly Freas
- I Am Nothing (1966)
- I Am Nothing (1966) with Kelly Freas
- I Married a Robot (1999)
- I Married a Robot (1999) with Kelly Freas
- I Was a Teen-Age Secret Weapon (1959)
- I Was a Teen-Age Secret Weapon (1959) with Freas
- I Was a Teen-Age Secret Weapon (reprint) (2007)
- I Was a Teen-Age Secret Weapon (reprint) (2007) with Freas
- I Was a Teen-Age Secret Weapon [2] (1959)
- I Was a Teen-Age Secret Weapon [2] (1959) with Freas
- I Was a Teen-Age Secret Weapon [2] (reprint) (2007)
- I Was a Teen-Age Secret Weapon [2] (reprint) (2007) with Freas
- I Was a Teen-Age Secret Weapon [3] (1959)
- I Was a Teen-Age Secret Weapon [3] (1959) with Freas
- I Was a Teen-Age Secret Weapon [3] (reprint) (2007)
- I Was a Teen-Age Secret Weapon [3] (reprint) (2007) with Freas
- I Was a Teen-Age Secret Weapon [4] (1959)
- I Was a Teen-Age Secret Weapon [4] (1959) with Freas
- I Was a Teen-Age Secret Weapon [4] (reprint) (2007)
- I Was a Teen-Age Secret Weapon [4] (reprint) (2007) with Freas
- I'll Kill You Tomorrow (1953)
- I'll Kill You Tomorrow (1953) with Kelly Freas
- Identity's Seven (1974)
- If, February 1959 (cover) (1999) with Kelly Freas
- If, June 1955 (cover) (1999) with Kelly Freas
- Ill Wind (1953)
- Ill Wind (1953) with Freas
- Ill Wind [2] (1953)
- Ill Wind [2] (1953) with Freas
- Image of Splendor (1955)
- Image of Splendor (1955) with Kelly Freas
- Immigrant (1954)
- Immigrant (1954) with Kelly Freas
- Immigrant (1954)
- Immigrant (1977)
- Immigrant [2] (1954)
- Immigrant [2] (1954) with Kelly Freas
- Immigrant [3] (1954)
- Immigrant [3] (1954) with Kelly Freas
- Immigrant [4] (1954)
- Immigrant [4] (1954) with Kelly Freas
- Immigrant [5] (1954)
- Immigrant [5] (1954) with Kelly Freas
- Important Difference (1967)
- Important Difference (1967) with Kelly Freas
- In Clouds of Glory (1955)
- In Clouds of Glory (1955) with Freas
- In Clouds of Glory [2] (1955)
- In Clouds of Glory [2] (1955) with Freas
- In Clouds of Glory [3] (1955)
- In Clouds of Glory [3] (1955) with Freas
- In Our Hands, the Stars (Part 1 of 3) (1969)
- In Our Hands, the Stars (Part 1 of 3) (1969) with Kelly Freas
- In Our Hands, the Stars (Part 1 of 3) [2] (1969)
- In Our Hands, the Stars (Part 1 of 3) [2] (1969) with Kelly Freas
- In Our Hands, the Stars (Part 2 of 3) (1970)
- In Our Hands, the Stars (Part 2 of 3) (1970) with Kelly Freas
- In Our Hands, the Stars (Part 2 of 3) [2] (1970)
- In Our Hands, the Stars (Part 2 of 3) [2] (1970) with Kelly Freas
- In Our Hands, the Stars (Part 3 of 3) (1970)
- In Our Hands, the Stars (Part 3 of 3) (1970) with Kelly Freas
- In Our Hands, the Stars (Part 3 of 3) [2] (1970)
- In Our Hands, the Stars (Part 3 of 3) [2] (1970) with Kelly Freas
- In the Light of Further Data (1965)
- In the Light of Further Data (1965) with Kelly Freas
- In the Matter of the Assassin Merefirs (1972)
- In the Matter of the Assassin Merefirs (1972) with Kelly Freas
- Indirection (1956)
- Indirection (1956) with Freas
- Indirection [2] (1956)
- Indirection [2] (1956) with Freas
- Ineluctable (2002)
- Ineluctable (2002) with Kelly Freas
- Initial Contact (1969)
- Initial Contact (1969) with Kelly Freas
- Interior art for The Return from Troy (2017)
- Interior: Analog, October 1975 (1975)
- Interior: News of the World (Album by Queen) (1977)
- Interlude (1973)
- Interlude (1973) with Kelly Freas
- Interview (1958)
- Interview (1958) with Freas
- Intruder from the Void (1956)
- Intruder from the Void (1956) with Kelly Freas
- Is Physics Finished? (1977)
- Isaac Asimov's Science Fiction Magazine, Winter 1977 (1977)
- Isaac Asimov's Science Fiction Magazine, Winter 1977 (1977)
- It Should Happen to a Dog (1955)
- It Should Happen to a Dog (1955) with Freas
- It's a Funny Thing (1978)
- It's a Funny Thing (1978)
- It's RIGHT Over Your Nose! (1968)
- It's RIGHT Over Your Nose! (1968) with Kelly Freas
- It's the Thought That Counts (2000)
- It's the Thought That Counts (2000) with Kelly Freas
- Jekyll-Hyde Planet (1956)
- Jekyll-Hyde Planet (1956) with Kelly Freas
- Joelle (1977)
- Joelle [2] (1977)
- Joelle [3] (1977)
- John W. Campbell Memorial Anthology (1973)
- John W. Campbell Memorial Anthology (1973) with Kelly Freas
- John W. Campbell, Ed. (2000)
- Judgment Day (1955)
- Judgment Day (1955) with Freas
- Judgment Day [2] (1955)
- Judgment Day [2] (1955) with Freas
- Judgment Night (cover) (1952)
- Jupiter Station (2000)
- Jupiter's Joke (1954)
- Jupiter's Joke (1954) with Kelly Freas
- Kapijsko putovanje [Serbian] (1991) with Fenk Keli Friz
- Killer (1953)
- Killer (1953) with Freas
- Kindred of the Crescent Moon (1990)
- Kindred of the Crescent Moon [2] (1990)
- Kindred of the Crescent Moon [3] (1990)
- Kindred of the Crescent Moon [4] (1990)
- Kingdoms of the Wall (frontispiece) (1993)
- Knight Arrant (1971)
- Knight Arrant (1971) with Kelly Freas
- Komarr (frontispiece) (1998)
- Komarr (frontispiece) (1998) with Kelly Freas
- Krishna (1969)
- Krishna (1969) with Kelly Freas
- Krishna [2] (1969)
- Krishna [2] (1969) with Kelly Freas
- Krishna [3] (1969)
- Krishna [3] (1969) with Kelly Freas
- L. Sprague de Camp (2000)
- Labyrinth (1989)
- Labyrinth (1989) with Kelly Freas
- Labyrinth [2] (1989)
- Labyrinth [2] (1989) with Kelly Freas
- Last Run on Venus (1953)
- Last Run on Venus (1953) with Kelly Freas
- Last Stand (1955)
- Last Stand (1955) with Kelly Freas
- Last Stand [2] (1955)
- Last Stand [2] (1955) with Kelly Freas
- Laws and Orders (1974)
- Laws and Orders (1974) with Kelly Freas
- Laws and Orders [2] (1974)
- Laws and Orders [2] (1974) with Kelly Freas
- Laws and Orders [3] (1974)
- Laws and Orders [3] (1974) with Kelly Freas
- Le forgeur d'âmes [French] (1956)
- Le forgeur d'âmes [2] [French] (1956)
- Le forgeur d'âmes [3] [French] (1956)
- Learning Device (1978)
- Lecture Demonstration (1973)
- Lecture Demonstration (1973) with Kelly Freas
- Legwork (1956)
- Legwork (1956) with Freas
- Legwork [2] (1956)
- Legwork [2] (1956) with Freas
- Legwork [3] (1956)
- Legwork [3] (1956) with Freas
- Legwork [3] (1971)
- Legwork [4] (1956)
- Legwork [4] (1956) with Freas
- Legwork [5] (1956)
- Legwork [5] (1956) with Freas
- Les marchands de Vénus [French] (1957)
- Letter from a Higher Critic (1966)
- Letter from a Higher Critic (1966) with Kelly Freas
- Lifeboat (Part 1 of 3) (1975)
- Lifeboat (Part 1 of 3) (1975) with Kelly Freas
- Lifeboat (Part 1 of 3) [2] (1975)
- Lifeboat (Part 1 of 3) [2] (1975) with Kelly Freas
- Lifeboat (Part 1 of 3) [3] (1975)
- Lifeboat (Part 1 of 3) [3] (1975) with Kelly Freas
- Lifeboat (Part 2 of 3) (1975)
- Lifeboat (Part 2 of 3) (1975) with Kelly Freas
- Lifeboat (Part 2 of 3) [2] (1975)
- Lifeboat (Part 2 of 3) [2] (1975) with Kelly Freas
- Lifeboat (Part 2 of 3) [3] (1975)
- Lifeboat (Part 2 of 3) [3] (1975) with Kelly Freas
- Lifeboat (Part 3 of 3) (1975)
- Lifeboat (Part 3 of 3) (1975) with Kelly Freas
- Lifeboat (Part 3 of 3) [2] (1975)
- Lifeboat (Part 3 of 3) [2] (1975) with Kelly Freas
- Lifeboat (Part 3 of 3) [3] (1975)
- Lifeboat (Part 3 of 3) [3] (1975) with Kelly Freas
- Light of Other Days (1966)
- Light of Other Days (1966) with Kelly Freas
- Literacy (1994)
- Literacy (1994) with Kelly Freas
- Live in Amity (1955)
- Live in Amity (1955) with Freas
- Locus #113 (1972)
- Locus #113 (1972) with Kelly Freas
- Lodestar (1973)
- Lodestar (1973) with Kelly Freas
- Lonesome Hearts (1954)
- Lonesome Hearts (1954) with Kelly Freas
- Long Life to You, Albert! (1953)
- Long Life to You, Albert! (1953) with Freas
- Long Shot (1972)
- Long Shot (1972) with Kelly Freas
- Look On My Works (1956)
- Look On My Works (1956) with Freas
- Look Out! Duck! (1957)
- Look Out! Duck! (1957) with Freas
- Look Out! Duck! [2] (1957)
- Look Out! Duck! [2] (1957) with Freas
- Look Out! Duck! [3] (1957)
- Look Out! Duck! [3] (1957) with Freas
- Look Out! Duck! [4] (1957)
- Look Out! Duck! [4] (1957) with Freas
- Look Out! Duck! [5] (1957)
- Look Out! Duck! [5] (1957) with Freas
- Lord of the Green Planet (1999) with Kelly Freas
- Lorelei of the Red Mist (1953)
- Lorelei of the Red Mist (1953)
- Lorelei of the Red Mist (1953) with uncredited
- Lorelei of the Red Mist [2] (1953)
- Lorelei of the Red Mist [2] (1953) with uncredited
- Lorelei of the Red Mist [3] (1953)
- Lorelei of the Red Mist [3] (1953) with uncredited
- Lorelei of the Red Mist [4] (1953)
- Lorelei of the Red Mist [4] (1953) with uncredited
- Lorelei of the Red Mist [5] (1953)
- Lorelei of the Red Mist [5] (1953) with uncredited
- Lorelei of the Red Mist [6] (1953)
- Lorelei of the Red Mist [6] (1953) with uncredited
- Lorelei of the Red Mist [7] (1953)
- Lorelei of the Red Mist [7] (1953) with uncredited
- Lost Newton (1970)
- Lost Newton (1970) with Kelly Freas
- Lost Newton [2] (1970)
- Lost Newton [2] (1970) with Kelly Freas
- Lot's Daughter (1954)
- Lot's Daughter (1954) with Kelly Freas
- Low Grade Ore (1977)
- Low Grade Ore [2] (1977)
- Low Grade Ore [3] (1977)
- Lunchbox (1972)
- Lunchbox (1972) with Kelly Freas
- Machine Complex (1956)
- Machine Complex (1956) with Freas
- Machine Complex (1956) with Freas
- Machine Complex [2] (1956)
- Machine Complex [2] (1956) with Freas
- Machine Complex [2] (1956) with Freas
- Machine Complex [3] (1956)
- Machine Complex [3] (1956) with Freas
- Machine Complex [3] (1956) with Freas
- Machine Complex [4] (1956)
- Machine Complex [4] (1956) with Freas
- Mail Supremacy (1975)
- Mail Supremacy (1975) with Kelly Freas
- Make Mine Homogenized (1960)
- Make Mine Homogenized (1960) with Kelly Freas
- Make Mine Homogenized (1960)
- Make Mine Homogenized (1960) with Freas
- Make Mine Homogenized (reprint) (2008)
- Make Mine Homogenized (reprint) (2008) with Freas
- Make Mine Homogenized [2] (1960)
- Make Mine Homogenized [2] (1960) with Freas
- Make Mine Homogenized [2] (reprint) (2008)
- Make Mine Homogenized [2] (reprint) (2008) with Freas
- Make Mine Homogenized [3] (1960)
- Make Mine Homogenized [3] (1960) with Freas
- Make Mine Homogenized [3] (reprint) (2008)
- Make Mine Homogenized [3] (reprint) (2008) with Freas
- Make Mine Homogenized [4] (1960)
- Make Mine Homogenized [4] (1960) with Freas
- Make Mine Homogenized [4] (reprint) (2008)
- Make Mine Homogenized [4] (reprint) (2008) with Freas
- Malice in Wonderland (1954)
- Malice in Wonderland (1954) with Kelly Freas
- Marauders of Gor (1975)
- Marauders of Gor (1975) with Kelly Freas
- Marauders of Gor (1978)
- Marauders of Gor (2000)
- Marauders of Gor (2003)
- Margin of Profit (1956)
- Margin of Profit (1956) with Freas
- Margin of Profit [2] (1956)
- Margin of Profit [2] (1956) with Freas
- Margin of Profit [3] (1956)
- Margin of Profit [3] (1956) with Freas
- Martians, Go Home (2003)
- Martians, Go Home! (1954)
- Martians, Go Home! (1954) with Freas
- Martians, Go Home! [2] (1954)
- Martians, Go Home! [2] (1954) with Freas
- Martians, Go Home! [3] (1954)
- Martians, Go Home! [3] (1954) with Freas
- Martians, Go Home! [4] (1954)
- Martians, Go Home! [4] (1954) with Freas
- Martians, Go Home! [5] (1954)
- Martians, Go Home! [5] (1954) with Freas
- Martians, Go Home! [6] (1954)
- Martians, Go Home! [6] (1954) with Freas
- Master of the Moondog (1952)
- Master of the Moondog (1952) with Kelly Freas
- Matter's End (2000)
- Mayenne (1975)
- Me & My Humanoids (1977)
- Meddler's World (1955)
- Meddler's World (1955) with Freas
- Medea (1985)
- Medea (2000)
- Mesklinites (1979)
- Messything (1970)
- Messything (1970) with Kelly Freas
- Middleman (1956)
- Middleman (1956) with Freas
- Mile Long Spaceship (1957)
- Millennium (1955)
- Millennium (1955) with Freas
- Millennium (1955)
- Millennium [2] (1955)
- Millennium [2] (1955) with Freas
- Millennium [2] (1955)
- Millennium [3] (1955)
- Millennium [3] (1955) with Freas
- Millennium [4] (1955)
- Millennium [4] (1955) with Freas
- Millennium [5] (1955)
- Millennium [5] (1955) with Freas
- Minds Meet (1966)
- Minds Meet (1966) with Kelly Freas
- Minor Ingredient (1956)
- Minor Ingredient (1956) with Freas
- Minor Ingredient [2] (1956)
- Minor Ingredient [2] (1956) with Freas
- Minotaur in a Mushroom Maze (Part 1 of 3) (1976)
- Minotaur in a Mushroom Maze (Part 1 of 3) (1976) with Kelly Freas
- Minotaur in a Mushroom Maze (Part 1 of 3) [2] (1976)
- Minotaur in a Mushroom Maze (Part 1 of 3) [2] (1976) with Kelly Freas
- Minotaur in a Mushroom Maze (Part 2 of 3) (1976)
- Minotaur in a Mushroom Maze (Part 2 of 3) (1976) with Kelly Freas
- Minotaur in a Mushroom Maze (Part 2 of 3) [2] (1976)
- Minotaur in a Mushroom Maze (Part 2 of 3) [2] (1976) with Kelly Freas
- Minotaur in a Mushroom Maze (Part 3 of 3) (1976)
- Minotaur in a Mushroom Maze (Part 3 of 3) (1976) with Kelly Freas
- Minotaur in a Mushroom Maze (Part 3 of 3) [2] (1976)
- Minotaur in a Mushroom Maze (Part 3 of 3) [2] (1976) with Kelly Freas
- Miss Tweedham's Elogarsn (1953)
- Miss Tweedham's Elogarsn (1953) with Kelly Freas
- Mission: Red Plague (1967)
- Mission: Red Plague (1967) with Kelly Freas
- Mister Justice (2000)
- Monitor Found in Orbit (1977)
- Moon Dance (1954)
- Moon Dance (1954) with Kelley Freas
- Moon Prospector (1966)
- Moon Prospector (1966) with Kelly Freas
- Mother of Invention (1953)
- Mother of Invention (1953) with Freas
- Mother of Invention [2] (1953)
- Mother of Invention [2] (1953) with Freas
- Mother of Invention [3] (1953)
- Mother of Invention [3] (1953) with Freas
- Mother of Invention [4] (1953)
- Mother of Invention [4] (1953) with Freas
- Mother of Invention [5] (1953)
- Mother of Invention [5] (1953) with Freas
- Mother's Day (1988)
- Moving? (1990)
- Murphy's Law (1958)
- Murphy's Law (1958) with Freas
- Music of the Sphere (1954)
- Music of the Sphere (1954) with Kelly Freas
- My Autobiography (1980)
- My Fuzzy Cousin, Reamer (1955)
- My Fuzzy Cousin, Reamer (1955) with F. K. Freas
- Myth Conceptions (1980) with Polly Freas
- Myth Conceptions (1980) with Kelly Freas and Polly Freas
- Mythconception (1978)
- Names! Names! Names! (1956)
- Names! Names! Names! (1956) with Freas
- Navy Day (1954)
- Navy Day (1954) with Kelly Freas
- Negative Feedback (1994)
- Negative Feedback (1994) with Kelly Freas
- Neon (1973)
- Neon (1973) with Kelly Freas
- Neutral Planet (1957)
- Neutral Planet (1957) with Freas
- Never Mess with a Witch (2000)
- New Arcadia (1956)
- New Arcadia (1956) with Freas
- New Blood (1955)
- New Blood (1955) with Freas
- New Blood [2] (1955)
- New Blood [2] (1955) with Freas
- New Blood [3] (1955)
- New Blood [3] (1955) with Freas
- New Worlds of Fantasy (1967)
- New Worlds of Fantasy (1967) with Kelly Freas
- New Worlds of Fantasy #2 (1970)
- New Worlds of Fantasy #2 (1970) with Kelly Freas
- News of the World (Album by Queen) (1977)
- Nineteen Eighty-Four (2000)
- Nineteen Eighty-Four (frontispiece) (1992)
- Nix Olympica (1974)
- Nix Olympica (1974) with Kelly Freas
- Nix Olympica [2] (1974)
- Nix Olympica [2] (1974) with Kelly Freas
- No Biz Like Show Biz (1974)
- No Biz Like Show Biz (1974) with Kelly Freas
- No More Barriers (1955)
- No More Barriers (1955) with Kelly Freas
- No Strings Attached (1954)
- No Strings Attached (1954) with Kelly Freas
- No Throne of His Own (1965)
- No Throne of His Own (1965) with Kelly Freas
- No Time for Change (1955)
- No Time for Change (1955) with Freas
- Nobody Bothers Gus (1955)
- Nobody Bothers Gus (1955) with Freas
- Nobody Bothers Gus [2] (1955)
- Nobody Bothers Gus [2] (1955) with Freas
- None So Blind (1975)
- None So Blind (1975) with Kelly Freas
- Not Polluted Enough (1973)
- Not Polluted Enough (1973) with Kelly Freas
- Nothing New (1955)
- Nothing New (1955) with Freas
- Nuisance Value (1957)
- Nuisance Value (1957) with Freas
- Nuisance Value [2] (1957)
- Nuisance Value [2] (1957) with Freas
- Nuisance Value [3] (1957)
- Nuisance Value [3] (1957) with Freas
- Nuisance Value [4] (1957)
- Nuisance Value [4] (1957) with Freas
- Nuisance Value [5] (1957)
- Nuisance Value [5] (1957) with Freas
- Nuisance Value [6] (1957)
- Nuisance Value [6] (1957) with Freas
- Null Zone (1968)
- Null Zone (1968) with Kelly Freas
- Nursery Sam (1996)
- Odyssey, Spring 1976 (2007) with Kelly Freas
- Odyssey, Spring 1976 (cover) (1999) with Kelly Freas
- Of Terrans Bearing Gifts (1967)
- Of Terrans Bearing Gifts (1967) with Kelly Freas
- Of Terrans Bearing Gifts [2] (1967)
- Of Terrans Bearing Gifts [2] (1967) with Kelly Freas
- Off Course (1954)
- Off Course (1954) with Kelly Freas
- Omnilingual (1957)
- Omnilingual (1957) with Freas
- Omnilingual [2] (1957)
- Omnilingual [2] (1957) with Freas
- Omnilingual [3] (1957)
- Omnilingual [3] (1957) with Freas
- Omnilingual [4] (1957)
- Omnilingual [4] (1957) with Freas
- Omnilingual [5] (1957)
- Omnilingual [5] (1957) with Freas
- On Commissioned Imaginations (1979)
- On Handling the Data (1959)
- On Handling the Data (1959) with Kelly Freas
- On the Care and Breeding of Pigs (1971)
- One Eye (1958)
- One More Chance (1954)
- One More Chance (1954) with Kelly Freas
- One Percent Inspiration (1957)
- One Percent Inspiration (1957) with Freas
- One Woman for Venus (1957)
- One Woman for Venus (1957) with Kelly Freas
- One-Eye (1958)
- One-Eye (1958) with Freas
- Operation Afreet (1956)
- Operation Afreet (1956) with Kelly Freas
- Operation Luna (2000)
- Opportunist (1969)
- Opportunist (1969) with Kelly Freas
- Opportunist [2] (1969)
- Opportunist [2] (1969) with Kelly Freas
- Our Children's Children (1984)
- Our Man in Pluvia (2002)
- Our Man in Pluvia (2002) with Kelly Freas
- Our Town (1955)
- Our Town (1955) with Kelly Freas
- Out in the Garden (1953)
- Out in the Garden (1953) with Freas
- Out Like a Light (Part 1 of 3) (1960)
- Out Like a Light (Part 1 of 3) (1960) with Freas
- Out Like a Light (Part 1 of 3) [2] (1960)
- Out Like a Light (Part 1 of 3) [2] (1960) with Freas
- Out Like a Light (Part 1 of 3) [2] (1960) with Freas
- Out Like a Light (Part 1 of 3) [2] (reprint) (2008)
- Out Like a Light (Part 1 of 3) [2] (reprint) (2008) with Freas
- Out Like a Light (Part 1 of 3) [3] (1960)
- Out Like a Light (Part 1 of 3) [3] (1960) with Freas
- Out Like a Light (Part 1 of 3) [3] (reprint) (2008)
- Out Like a Light (Part 1 of 3) [3] (reprint) (2008) with Freas
- Out Like a Light (Part 1 of 3) [4] (1960)
- Out Like a Light (Part 1 of 3) [4] (1960) with Freas
- Out Like a Light (Part 1 of 3) [4] (reprint) (2008)
- Out Like a Light (Part 1 of 3) [4] (reprint) (2008) with Freas
- Out Like a Light (Part 1 of 3) [5] (1960)
- Out Like a Light (Part 1 of 3) [5] (1960) with Freas
- Out Like a Light (Part 1 of 3) [5] (reprint) (2008)
- Out Like a Light (Part 1 of 3) [5] (reprint) (2008) with Freas
- Out Like a Light (Part 1 of 3) [6] (reprint) (2008)
- Out Like a Light (Part 1 of 3) [6] (reprint) (2008) with Freas
- Out Like a Light (Part 1 of 3) [illustration part 1] (reprint) (2008)
- Out Like a Light (Part 1 of 3) [illustration part 1] (reprint) (2008) with Freas
- Out Like a Light (Part 1 of 3) [illustration part 2] (reprint) (2008)
- Out Like a Light (Part 1 of 3) [illustration part 2] (reprint) (2008) with Freas
- Out Like a Light (Part 2 of 3) (1960)
- Out Like a Light (Part 2 of 3) (1960) with Freas
- Out Like a Light (Part 2 of 3) (reprint) (2008)
- Out Like a Light (Part 2 of 3) (reprint) (2008) with Freas
- Out Like a Light (Part 2 of 3) [2] (1960)
- Out Like a Light (Part 2 of 3) [2] (1960) with Freas
- Out Like a Light (Part 2 of 3) [2] (reprint) (2008)
- Out Like a Light (Part 2 of 3) [2] (reprint) (2008) with Freas
- Out Like a Light (Part 2 of 3) [3] (1960)
- Out Like a Light (Part 2 of 3) [3] (1960) with Freas
- Out Like a Light (Part 2 of 3) [3] (reprint) (2008)
- Out Like a Light (Part 2 of 3) [3] (reprint) (2008) with Freas
- Out Like a Light (Part 2 of 3) [4] (1960)
- Out Like a Light (Part 2 of 3) [4] (1960) with Freas
- Out Like a Light (Part 2 of 3) [4] (reprint) (2008)
- Out Like a Light (Part 2 of 3) [4] (reprint) (2008) with Freas
- Out Like a Light (Part 2 of 3) [5] (1960)
- Out Like a Light (Part 2 of 3) [5] (1960) with Freas
- Out Like a Light (Part 2 of 3) [5] (reprint) (2008)
- Out Like a Light (Part 2 of 3) [5] (reprint) (2008) with Freas
- Out Like a Light (Part 2 of 3) [6] (1960)
- Out Like a Light (Part 2 of 3) [6] (1960) with Freas
- Out Like a Light (Part 2 of 3) [6] (reprint) (2008)
- Out Like a Light (Part 2 of 3) [6] (reprint) (2008) with Freas
- Out Like A Light (Part 3 of 3) (1960)
- Out Like A Light (Part 3 of 3) (1960) with Freas
- Out Like a Light (Part 3 of 3) (reprint) (2008)
- Out Like a Light (Part 3 of 3) (reprint) (2008) with Freas
- Out Like A Light (Part 3 of 3) [2] (1960)
- Out Like A Light (Part 3 of 3) [2] (1960) with Freas
- Out Like a Light (Part 3 of 3) [2] (reprint) (2008)
- Out Like a Light (Part 3 of 3) [2] (reprint) (2008) with Freas
- Out Like A Light (Part 3 of 3) [3] (1960)
- Out Like A Light (Part 3 of 3) [3] (1960) with Freas
- Out Like a Light (Part 3 of 3) [3] (reprint) (2008)
- Out Like a Light (Part 3 of 3) [3] (reprint) (2008) with Freas
- Out Like A Light (Part 3 of 3) [4] (1960)
- Out Like A Light (Part 3 of 3) [4] (1960) with Freas
- Out Like a Light (Part 3 of 3) [4] (reprint) (2008)
- Out Like a Light (Part 3 of 3) [4] (reprint) (2008) with Freas
- Out Like A Light (Part 3 of 3) [5] (1960)
- Out Like A Light (Part 3 of 3) [5] (1960) with Freas
- Out Like a Light (Part 3 of 3) [5] (reprint) (2008)
- Out Like a Light (Part 3 of 3) [5] (reprint) (2008) with Freas
- Out Like A Light (Part 3 of 3) [6] (1960)
- Out Like A Light (Part 3 of 3) [6] (1960) with Freas
- Out Like a Light (Part 3 of 3) [6] (reprint) (2008)
- Out Like a Light (Part 3 of 3) [6] (reprint) (2008) with Freas
- Out Like A Light [magazine cover] (reprint) (2008)
- Out Like a Light [magazine cover] (reprint) (2008) with Freas
- Out of Their Minds (1983)
- Pack Rat Planet (1954)
- Pack Rat Planet (1954) with Freas
- Pack Rat Planet [2] (1954)
- Pack Rat Planet [2] (1954) with Freas
- Pack Rat Planet [3] (1954)
- Pack Rat Planet [3] (1954) with Freas
- Pan With Clarinet (2000)
- Pandora's Planet (1956)
- Pandora's Planet (1956) with Freas
- Pandora's Planet (2000)
- Pandora's Planet [2] (1956)
- Pandora's Planet [2] (1956) with Freas
- Pandora's Planet [3] (1956)
- Pandora's Planet [3] (1956) with Freas
- Pandora's Planet [4] (1956)
- Pandora's Planet [4] (1956) with Freas
- Paradise Game (1984)
- Pariah Girl (1957)
- Pariah Girl (1957) with Kelly Freas
- Pate de Foie Gras (1956)
- Pate de Foie Gras (1956) with Kelly Freas
- Penal Servitude (1958)
- Penal Servitude (1958) with Freas
- Penal Servitude [2] (1958)
- Penal Servitude [2] (1958) with Freas
- Penal Servitude [3] (1958)
- Penal Servitude [3] (1958) with Freas
- Perfectly Adjusted (1955)
- Perfectly Adjusted (1955) with Kelly Freas
- Persistence (1969)
- Persistence (1969) with Kelly Freas
- Persistence [2] (1969)
- Persistence [2] (1969) with Kelly Freas
- Phantasmaplasmagoria (1968)
- Phantasmaplasmagoria (1968) with Kelly Freas
- Pieces of the Game (1958)
- Pieces of the Game (1958) with Freas
- Pieces of the Game [2] (1958)
- Pieces of the Game [2] (1958) with Freas
- Pioneer Trip (1967)
- Pioneer Trip (1967) with Kelly Freas
- Pirates of Ersatz (1977)
- Pity About Earth (title page) (1968)
- Pity About Earth (title page) (1968) with Kelly Freas
- Plague on Kryder II (1964)
- Plague on Kryder II (1964) with Kelly Freas
- Plague on Kryder II [2] (1964)
- Plague on Kryder II [2] (1964) with Kelly Freas
- Planet Stories, January 1954 (cover) (1999) with Kelly Freas
- Planet Stories, May 1954 (poster) (2020) with Kelly Freas
- Planet Stories, November 1953 (cover) (2007)
- Planet Stories, September 1953 (1977)
- Planet Stories, Summer 1954 (cover) (1954)
- Planet Stories, Summer 1955 (cover) (2020) with Kelly Freas
- Plus X (1956)
- Plus X (1956) with Freas
- Plus X (1977)
- Plus X [2] (1956)
- Plus X [2] (1956) with Freas
- Plus X [3] (1956)
- Plus X [3] (1956) with Freas
- Plus X [4] (1956)
- Plus X [4] (1956) with Freas
- Plus X [5] (1956)
- Plus X [5] (1956) with Freas
- Point of Focus (1958)
- Point of Focus (1958) with Freas
- Point of Focus [2] (1958)
- Point of Focus [2] (1958) with Freas
- Polar Punch (1954)
- Poltergeist (1971)
- Poltergeist (1971) with Kelly Freas
- Positive Feedback (1965)
- Positive Feedback (1965) with Kelly Freas
- Practice! (1968)
- Practice! (1968) with Kelly Freas
- Practice! [2] (1968)
- Practice! [2] (1968) with Kelly Freas
- Prime Commandment (1958)
- Prime Commandment (1958) with Freas
- Probability Zero: The Population Implosion (1973)
- Probability Zero: The Population Implosion (1973) with Kelly Freas
- Profession (1957)
- Profession (1957) with Freas
- Profession [2] (1957)
- Profession [2] (1957) with Freas
- Profession [3] (1957)
- Profession [3] (1957) with Freas
- Profession [4] (1957)
- Profession [4] (1957) with Freas
- Profession [4] (1957)
- Profession [5] (1957)
- Profession [5] (1957)
- Profession [5] (1957) with Freas
- Project Island Bounce (1968)
- Project Island Bounce (1968) with Kelly Freas
- Prostho Plus (1967)
- Prostho Plus (1967) with Kelly Freas
- Prostho Plus [2] (1967)
- Prostho Plus [2] (1967) with Kelly Freas
- Proud Guns to the Sea (1973)
- Proud Guns to the Sea (1973) with Kelly Freas
- Psi Assassin (1967)
- Psi Assassin (1967) with Kelly Freas
- Psi for Sale (1965)
- Psi for Sale (1965) with Kelly Freas
- Pâté de Foie Gras (1956)
- Pâté de Foie Gras (1956) with Freas
- Pâté de Foie Gras [2] (1956)
- Pâté de Foie Gras [2] (1956) with Freas
- Pâté de Foie Gras [3] (1956)
- Pâté de Foie Gras [3] (1956) with Freas
- Quaddie (2000)
- Quarantine World (1966)
- Quarantine World (1966) with Kelly Freas
- Quarantine World [2] (1966)
- Quarantine World [2] (1966) with Kelly Freas
- Queen of Angels (2000)
- Queen of Angels (frontispiece) (1990)
- Quest (1957)
- Quest (1957) with Freas
- Question & Answer (1954)
- Question & Answer [2] (1954)
- Question and Answer (Part 1 of 2) (1954)
- Question and Answer (Part 1 of 2) (1954) with Kelly Freas
- Question and Answer (Part 1 of 2) [2] (1954)
- Question and Answer (Part 1 of 2) [2] (1954) with Kelly Freas
- Question and Answer (Part 1 of 2) [3] (1954)
- Question and Answer (Part 1 of 2) [3] (1954) with Kelly Freas
- Question and Answer (Part 1 of 2) [4] (1954)
- Question and Answer (Part 1 of 2) [4] (1954) with Kelly Freas
- Question and Answer (Part 2 of 2) (1954)
- Question and Answer (Part 2 of 2) (1954) with Freas
- Question and Answer (Part 2 of 2) [2] (1954)
- Question and Answer (Part 2 of 2) [2] (1954) with Freas
- Question and Answer (Part 2 of 2) [3] (1954)
- Question and Answer (Part 2 of 2) [3] (1954) with Freas
- Question and Answer (Part 2 of 2) [4] (1954)
- Question and Answer (Part 2 of 2) [4] (1954) with Freas
- Radical Center (1967)
- Radical Center (1967) with Kelly Freas
- Radical Center [2] (1967)
- Radical Center [2] (1967) with Kelly Freas
- Rails Across the Galaxy (Part 1 of 3) (1982)
- Rails Across the Galaxy (Part 1 of 3) (1982) with Kelly Freas
- Rails Across the Galaxy (Part 1 of 3) [2] (1982)
- Rails Across the Galaxy (Part 1 of 3) [2] (1982) with Kelly Freas
- Rails Across the Galaxy (Part 2 of 3) (1982)
- Rails Across the Galaxy (Part 2 of 3) (1982) with Kelly Freas
- Rails Across the Galaxy (Part 2 of 3) [2] (1982)
- Rails Across the Galaxy (Part 2 of 3) [2] (1982) with Kelly Freas
- Rails Across the Galaxy (Part 3 of 3) (1982)
- Rails Across the Galaxy (Part 3 of 3) (1982) with Kelly Freas
- Rails Across the Galaxy (Part 3 of 3) [2] (1982)
- Rails Across the Galaxy (Part 3 of 3) [2] (1982) with Kelly Freas
- Rare Events (1970)
- Rare Events (1970) with Kelly Freas
- Rat Race (1966)
- Rat Race (1966) with Kelly Freas
- Rebounder (1976)
- Rebounder (1976) with Kelly Freas
- Redbeard (cover) (2012)
- Regarding Patient 724 (1973)
- Regarding Patient 724 (1973) with Kelly Freas
- Rejection Slips (1979)
- Request for Proposal (1972)
- Request for Proposal (1972) with Kelly Freas
- Rescue Squad for Ahmed (1970)
- Rescue Squad for Ahmed (1970) with Kelly Freas
- Rescue Squad for Ahmed [2] (1970)
- Rescue Squad for Ahmed [2] (1970) with Kelly Freas
- Research Station (2000)
- Resident Witch (1970)
- Resident Witch (1970) with Kelly Freas
- Resident Witch [2] (1970)
- Resident Witch [2] (1970) with Kelly Freas
- Riddle of the Deadly Paradise (1958)
- Riddle of the Deadly Paradise (1958) with Freas
- Riot (2000)
- Risk (1955)
- Risk (1955) with Freas
- Risk [2] (1955)
- Risk [2] (1955) with Freas
- Risk [3] (1955)
- Risk [3] (1955) with Freas
- Rocketship X-M (1977)
- Romp (1966)
- Romp (1966) with Kelly Freas
- Rosemary's Baby (2000)
- Roy Tackett: The Two Roy Tacketts (1997)
- Roy Tackett: The Two Roy Tacketts (1997) with Kelly Freas
- Royal Road (1954)
- Royal Road (1954) with Kelly Freas
- Royal Road [2] (1954)
- Royal Road [2] (1954) with Kelly Freas
- Royal Road [3] (1954)
- Royal Road [3] (1954) with Kelly Freas
- Royal Road [4] (1954)
- Royal Road [4] (1954) with Kelly Freas
- Run of the Mill (1957)
- Run of the Mill (1957) with Freas
- Run of the Mill [2] (1957)
- Run of the Mill [2] (1957) with Freas
- Sam and the Flying Dutchman (2003)
- Sam and the Flying Dutchman (2003) with Kelly Freas
- Sam Boone and the Thermal Couple (1995)
- Sam Boone and the Thermal Couple (1995) with Kelly Freas
- Sam Boone's Appeal to Common Scents (1996)
- Sam Boone's Appeal to Common Scents (1996) with Kelly Freas
- Sam Boone's Dry Run (1997)
- Sam Boone's Rational Choices (1997)
- Sam Boone's Rational Choices (1997) with Kelly Freas
- Sam Boone's Super Fantastic Intragalactic Ass-Kickin', Body-Slammin', Foot-Stompin' Rasslin' Extravaganza (2002)
- Sam Boone's Super Fantastic Intragalactic Ass-Kickin', Body-Slammin', Foot-Stompin' Rasslin' Extravaganza (2002) with Kelly Freas
- Sand Doom (1955)
- Sand Doom (1955) with Freas
- Sand Doom (1956) with Freas
- Sand Doom (reprint) (2007)
- Sand Doom (reprint) (2007) with Freas
- Sand Doom [2] (1955)
- Sand Doom [2] (1955) with Freas
- Sand Doom [2] (1956)
- Sand Doom [2] (1956) with Freas
- Sand Doom [2] (reprint) (2007)
- Sand Doom [2] (reprint) (2007) with Freas
- Sand Doom [3] (1955)
- Sand Doom [3] (1955) with Freas
- Sand Doom [3] (1956)
- Sand Doom [3] (1956)
- Sand Doom [3] (1956) with Freas
- Sand Doom [3] (1956) with Freas
- Sand Doom [3] (reprint) (2007)
- Sand Doom [3] (reprint) (2007) with Freas
- Sand Doom [4] (1955)
- Sand Doom [4] (1955) with Freas
- Sand Doom [4] (1956)
- Sand Doom [4] (1956) with Freas
- Sand Doom [4] (reprint) (2007)
- Sand Doom [4] (reprint) (2007) with Freas
- Sand Doom [5] (1955)
- Sand Doom [5] (1955) with Freas
- Sand Doom [5] (reprint) (2007)
- Sand Doom [5] (reprint) (2007) with Freas
- Sand Doom [magazine cover] (reprint) (2007)
- Sand Doom [magazine cover] (reprint) (2007) with Freas
- Satan's World (Part 1 of 4) (1968)
- Satan's World (Part 1 of 4) (1968) with Kelly Freas
- Satan's World (Part 1 of 4) [2] (1968)
- Satan's World (Part 1 of 4) [2] (1968) with Kelly Freas
- Satan's World (Part 2 of 4) (1968)
- Satan's World (Part 2 of 4) (1968) with Kelly Freas
- Satan's World (Part 2 of 4) [2] (1968)
- Satan's World (Part 2 of 4) [2] (1968) with Kelly Freas
- Satan's World (Part 3 of 4) (1968)
- Satan's World (Part 3 of 4) (1968) with Kelly Freas
- Satan's World (Part 3 of 4) [2] (1968)
- Satan's World (Part 3 of 4) [2] (1968) with Kelly Freas
- Satan's World (Part 4 of 4) (1968)
- Satan's World (Part 4 of 4) (1968) with Kelly Freas
- Satan's World (Part 4 of 4) [2] (1968)
- Satan's World (Part 4 of 4) [2] (1968) with Kelly Freas
- Satellite Science Fiction, December 1956 (cover) (1999) with Kelly Freas
- Savage Planet (1980)
- Savage Planet (1980) with Kelly Freas
- Say It with Flowers (1965)
- Say It with Flowers (1965) with Kelly Freas
- Scribe (1990) with Laura Brodian Freas
- Scribe (2000) with Laura Brodian Freas
- Scrimshaw (1955)
- Scrimshaw (1955) with Freas
- Scrimshaw (reprint) (2007)
- Scrimshaw (reprint) (2007) with Freas
- Scrimshaw [2] (1955)
- Scrimshaw [2] (1955) with Freas
- Scrimshaw [2] (reprint) (2007)
- Scrimshaw [2] (reprint) (2007) with Freas
- Sea Change (1956)
- Sea Change (1956) with Freas
- Sea Change [2] (1956)
- Sea Change [2] (1956) with Freas
- Sea Changes (2002)
- Sea Changes (2002) with Kelly Freas
- Seasoning (1985)
- Seasoning (1985) with Kelly Freas
- Seat of Oblivion (1966)
- Seat of Oblivion (1966) with Kelly Freas
- Second Seeded (1966)
- Second Seeded (1966) with Kelly Freas
- Secret Weapon (1968)
- Secret Weapon (1968) with Kelly Freas
- Secret Weapon [2] (1968)
- Secret Weapon [2] (1968) with Kelly Freas
- Security (1955)
- Security (1955) with Freas
- Security (reprint) (2008)
- Security (reprint) (2008) with Freas
- Security Measure (1967)
- Security Measure (1967) with Kelly Freas
- Seed of Reason (1999)
- Seed of Reason (1999) with Kelly Freas
- Serials (1980)
- SFCon; Science Fiction Convention (cover) (1954)
- Shambleau (Caedmon Records) (1980)
- She (1992)
- She (2000)
- Ship-Sister, Star-Sister (1979)
- Ship-Sister, Star-Sister (1979) with Kelly Freas
- Shootout at the Nokai Corral (Part 1 of 4) (2003)
- Shootout at the Nokai Corral (Part 1 of 4) (2003) with Kelly Freas
- Shootout at the Nokai Corral (Part 2 of 4) (2003)
- Shootout at the Nokai Corral (Part 2 of 4) (2003) with Kelly Freas
- Shootout at the Nokai Corral (Part 3 of 4) (2003)
- Shootout at the Nokai Corral (Part 3 of 4) (2003) with Kelly Freas
- Shootout at the Nokai Corral (Part 4 of 4) (2003)
- Shootout at the Nokai Corral (Part 4 of 4) (2003) with Kelly Freas
- Short History of World War Three (1958)
- Short History of World War Three (1958) with Freas
- Short History of World War Three [2] (1958)
- Short History of World War Three [2] (1958) with Freas
- Shortstack (1964)
- Shortstack (1964) with Kelly Freas
- Side Bet (2000)
- Side Effect (1976)
- Side Effect (1976) with Kelly Freas
- Silent Victory (1953)
- Silent Victory (1953) with Kelly Freas
- Sinful City (1957)
- Sinful City (1957) with Freas
- Sins of the Father (1977)
- Sirius, #15 [Croatian] (1977)
- Six Million Solid Gold Belter Buckles (1994)
- Six Million Solid Gold Belter Buckles (1994) with Kelly Freas
- Skin Game (1954)
- Skin Game (1954) with Kelly Freas
- Skylab (1973)
- Skylab (1977)
- Skylab Painting (2000)
- Skylab Patchwork (1973)
- Skylab Patchwork [2] (1973)
- Skylab Patchwork [3] (1973)
- Skylab Patchwork [4] (1973)
- Sleeping Dogs (1974)
- Sleeping Dogs (1974) with Kelly Freas
- Sleeping Planet (Part 1 of 3) (1964)
- Sleeping Planet (Part 1 of 3) (1964) with Kelly Freas
- Sleeping Planet (Part 1 of 3) [2] (1964)
- Sleeping Planet (Part 1 of 3) [2] (1964) with Kelly Freas
- Sleeping Planet (Part 2 of 3) (1964)
- Sleeping Planet (Part 2 of 3) (1964) with Kelly Freas
- Sleeping Planet (Part 3 of 3) (1964)
- Sleeping Planet (Part 3 of 3) (1964) with Kelly Freas
- Sleepwalker's World (frontispiece) (1972)
- Sleepwalker's World (frontispiece) (1972) with Kelly Freas
- Slow Burn (1955)
- Slow Burn (1955) with Kelly Freas
- Small Lords (1957)
- Small Lords (1957) with Freas
- Snickerdoodles (1990)
- Snowball (1955)
- Snowball (1955) with Kelly Freas
- So Be Good, for Goodness' Sake (2000)
- Social Climber (1956)
- Social Climber (1956) with Kelly Freas
- Soldier, Ask Not (2022) with Kelly Freas
- Some Will Not Die (1978)
- Some Will Not Die (cover) (1999) with Kelly Freas
- Something Up There Likes Me (1973)
- Something Up There Likes Me (1973) with Kelly Freas
- Somewhere a Voice (1966)
- Somewhere a Voice (1966) with Kelly Freas
- Songs of a Sentient Flute (1985)
- Songs of a Sentient Flute (1985) with Kelly Freas
- Sour Note on Palayata (1956)
- Sour Note on Palayata (1956) with Freas
- Sour Note on Palayata [2] (1956)
- Sour Note on Palayata [2] (1956) with Freas
- Sour Note on Palayata [3] (1956)
- Sour Note on Palayata [3] (1956) with Freas
- Sour Note on Palayata [4] (1956)
- Sour Note on Palayata [4] (1956) with Freas
- Space for Madness (1959)
- Space for Madness (1959) with Freas
- Space Pioneer (Part 1 of 3) (1965)
- Space Pioneer (Part 1 of 3) (1965) with Kelly Freas
- Space Pioneer (Part 1 of 3) [2] (1965)
- Space Pioneer (Part 1 of 3) [2] (1965) with Kelly Freas
- Space Pioneer (Part 2 of 3) (1965)
- Space Pioneer (Part 2 of 3) (1965) with Kelly Freas
- Space Pioneer (Part 2 of 3) [2] (1965)
- Space Pioneer (Part 2 of 3) [2] (1965) with Kelly Freas
- Space Pioneer (Part 3 of 3) (1965)
- Space Pioneer (Part 3 of 3) (1965) with Kelly Freas
- Space Pioneer (Part 3 of 3) [2] (1965)
- Space Pioneer (Part 3 of 3) [2] (1965) with Kelly Freas
- Space Pioneer (Part 3 of 3) [3] (1965)
- Space Pioneer (Part 3 of 3) [3] (1965) with Kelly Freas
- Space Poster #1 (We Still Have a Choice) (1977)
- Space Poster #2 (The Egg) (1977)
- Space to Swing a Cat (1958)
- Space to Swing a Cat (1958) with Freas
- Space Wars: Worlds and Weapons (end papers) (1979)
- Special Effect (1954)
- Special Effect (1954) with Freas
- Specialty (1968)
- Specialty (1968) with Kelly Freas
- Specialty [2] (1968)
- Specialty [2] (1968) with Kelly Freas
- Split Personality (1968)
- Split Personality (1968) with Kelly Freas
- Split Personality [2] (1968)
- Split Personality [2] (1968) with Kelly Freas
- Standing Firm on the Pipette Line (2001)
- Star Anchored, Star Angered (1984)
- Star Light (Part 1 of 4) (1970)
- Star Light (Part 1 of 4) (1970) with Kelly Freas
- Star Light (Part 1 of 4) [2] (1970)
- Star Light (Part 1 of 4) [2] (1970) with Kelly Freas
- Star Light (Part 1 of 4) [3] (1970)
- Star Light (Part 1 of 4) [3] (1970) with Kelly Freas
- Star Light (Part 2 of 4) (1970)
- Star Light (Part 2 of 4) (1970) with Kelly Freas
- Star Light (Part 2 of 4) [2] (1970)
- Star Light (Part 2 of 4) [2] (1970) with Kelly Freas
- Star Light (Part 3 of 4) (1970)
- Star Light (Part 3 of 4) (1970) with Kelly Freas
- Star Light (Part 3 of 4) [2] (1970)
- Star Light (Part 3 of 4) [2] (1970) with Kelly Freas
- Star Light (Part 3 of 4) [3] (1970)
- Star Light (Part 3 of 4) [3] (1970) with Kelly Freas
- Star Light (Part 4 of 4) (1970)
- Star Light (Part 4 of 4) (1970) with Kelly Freas
- Star Light (Part 4 of 4) [2] (1970)
- Star Light (Part 4 of 4) [2] (1970) with Kelly Freas
- Star Light (Part 4 of 4) [3] (1970)
- Star Light (Part 4 of 4) [3] (1970) with Kelly Freas
- Star Probe (Part 1 of 3) (1975)
- Star Probe (Part 1 of 3) (1975) with Kelly Freas
- Star Probe (Part 1 of 3) [2] (1975)
- Star Probe (Part 1 of 3) [2] (1975) with Kelly Freas
- Star Probe (Part 1 of 3) [3] (1975)
- Star Probe (Part 1 of 3) [3] (1975) with Kelly Freas
- Star Probe (Part 1 of 3) [4] (1975)
- Star Probe (Part 1 of 3) [4] (1975) with Kelly Freas
- Star Probe (Part 2 of 3) (1975)
- Star Probe (Part 2 of 3) (1975) with Kelly Freas
- Star Probe (Part 2 of 3) [2] (1975)
- Star Probe (Part 2 of 3) [2] (1975) with Kelly Freas
- Star Probe (Part 2 of 3) [3] (1975)
- Star Probe (Part 2 of 3) [3] (1975) with Kelly Freas
- Star Probe (Part 3 of 3) (1975)
- Star Probe (Part 3 of 3) (1975) with Kelly Freas
- Star Probe (Part 3 of 3) [2] (1975)
- Star Probe (Part 3 of 3) [2] (1975) with Kelly Freas
- Star Probe (Part 3 of 3) [3] (1975)
- Star Probe (Part 3 of 3) [3] (1975) with Kelly Freas
- Stargate (Part 1 of 3) (1974)
- Stargate (Part 1 of 3) (1974) with Kelly Freas
- Stargate (Part 1 of 3) [2] (1974)
- Stargate (Part 1 of 3) [2] (1974) with Kelly Freas
- Stargate (Part 1 of 3) [3] (1974)
- Stargate (Part 1 of 3) [3] (1974) with Kelly Freas
- Stargate (Part 2 of 3) (1974)
- Stargate (Part 2 of 3) (1974) with Kelly Freas
- Stargate (Part 2 of 3) [2] (1974)
- Stargate (Part 2 of 3) [2] (1974) with Kelly Freas
- Stargate (Part 3 of 3) (1974)
- Stargate (Part 3 of 3) (1974) with Kelly Freas
- Stargate (Part 3 of 3) [2] (1974)
- Stargate (Part 3 of 3) [2] (1974) with Kelly Freas
- Starmasters' Gambit (1984)
- Starobin (1957)
- Starobin (1957) with Freas
- Startide Rising (frontispiece) (1994)
- State of the Union (1996)
- State of the Union (1996) with Kelly Freas
- Stimulus (1958)
- Stimulus (1958) with Freas
- Stimulus [2] (1958)
- Stimulus [2] (1958) with Freas
- Stimulus [3] (1958)
- Stimulus [3] (1958) with Freas
- Stimulus [4] (1958)
- Stimulus [4] (1958) with Freas
- Stimulus-Response (1969)
- Stimulus-Response (1969) with Kelly Freas
- Stormy Bellwether (1972)
- Stormy Bellwether (1972) with Kelly Freas
- Stranglehold (1966)
- Stranglehold (1966) with Kelly Freas
- Streets of Gold (1953)
- Streets of Gold (1953) with Freas
- Study in Still Life (1959)
- Study in Still Life (1959) with Freas
- Study in Still Life [2] (1959)
- Study in Still Life [2] (1959) with Freas
- Study in Still Life [3] (1959)
- Study in Still Life [3] (1959) with Freas
- Success story (1953)
- Success story (1953) with Kelly Freas
- Such Stuff As Dreams ... (1968)
- Such Stuff As Dreams ... (1968) with Kelly Freas
- Such Stuff As Dreams ... [2] (1968)
- Such Stuff As Dreams ... [2] (1968) with Kelly Freas
- Sucker Bait (1954)
- Sucker Bait (1954) with Kelly Freas
- Sucker Bait (1954)
- Sucker Bait (Part 1 of 2) (1954)
- Sucker Bait (Part 1 of 2) (1954) with Kelly Freas
- Sucker Bait (Part 1 of 2) [2] (1954)
- Sucker Bait (Part 1 of 2) [2] (1954) with Kelly Freas
- Sucker Bait (Part 1 of 2) [3] (1954)
- Sucker Bait (Part 1 of 2) [3] (1954) with Kelly Freas
- Sucker Bait (Part 2 of 2) (1954)
- Sucker Bait (Part 2 of 2) (1954) with Kelly Freas
- Sucker Bait (Part 2 of 2) [2] (1954)
- Sucker Bait (Part 2 of 2) [2] (1954) with Kelly Freas
- Sucker Bait (Part 2 of 2) [3] (1954)
- Sucker Bait (Part 2 of 2) [3] (1954) with Kelly Freas
- Sucker Bait [2] (1954)
- Sucker Bait [3] (1954)
- Sucker Bait [4] (1954)
- Sucker Bet (1990)
- Summit (1960)
- Summit (1960) with Kelly Freas
- Summit (reprint) (2007)
- Summit (reprint) (2007) with Kelly Freas
- Suncon, the 35th World Science Fiction Convention Program Book (1977)
- Sunday Night Yams at Minnie and Earl's (2001)
- Super Science-Fiction, October 1957 (cover) (2012)
- Super-Science Fiction, April 1957 (2016) with Kelly Freas
- Super-Science Fiction, April 1957 (cover) (1957)
- Super-Science Fiction, August 1957 (2016) with Kelly Freas
- Super-Science Fiction, August 1957 (cover) (1957)
- Super-Science Fiction, August 1958 (2016) with Kelly Freas
- Super-Science Fiction, August 1958 (cover) (1958)
- Super-Science Fiction, December 1956 (2016) with Kelly Freas
- Super-Science Fiction, December 1956 (cover) (1956)
- Super-Science Fiction, December 1957 (2016) with Kelly Freas
- Super-Science Fiction, December 1957 (cover) (1999) with Kelly Freas
- Super-Science Fiction, December 1957 (cover) (2012)
- Super-Science Fiction, December 1958 (2016) with Kelly Freas
- Super-Science Fiction, December 1958 (cover) (1958)
- Super-Science Fiction, February 1958 (2016) with Kelly Freas
- Super-Science Fiction, February 1958 (cover) (1958)
- Super-Science Fiction, June 1958 (2016) with Kelly Freas
- Super-Science Fiction, June 1958 (cover) (1958)
- Super-Science Fiction, June 1958 (cover) (2020) with Kelly Freas
- Super-Science Fiction, June 1959 (2016) with Kelly Freas
- Super-Science Fiction, June 1959 (cover) (1959)
- Super-Science Fiction, October 1957 (2016) with Kelly Freas
- Supernova (1967)
- Supernova (1967) with Kelly Freas
- Supernova [2] (1967)
- Supernova [2] (1967) with Kelly Freas
- Superstition (1954)
- Superstition (1954) with Freas
- Superstition [2] (1954)
- Superstition [2] (1954) with Freas
- Superstition [3] (1954)
- Superstition [3] (1954) with Freas
- Superstition [4] (1954)
- Superstition [4] (1954) with Freas
- Surface Wars (1992)
- Survivor (1966)
- Survivor (1966) with Kelly Freas
- Swan Song (1975)
- Swan's Lake (1990)
- Swanilda's Song (1985)
- Swanilda's Song (1985) with Kelly Freas
- Sylvia (1953)
- Sylvia (1953) with Freas
- Symbols (1966)
- Symbols (1966) with Kelly Freas
- Takeoff! (1980) with Kelly Freas
- Takeoff! (1986)
- Temptress of Planet Delight (1953)
- Temptress of Planet Delight (1953) with Kelly Freas
- Tempus Non Fugit (1957)
- Tempus Non Fugit (1957) with Kelly Freas
- Test in Orbit (1965)
- Test in Orbit (1965) with Kelly Freas
- Testament XXI (1977)
- That Professional Look (1954)
- That Professional Look (1954) with Kelly Freas
- That Professional Look [2] (1954)
- That Professional Look [2] (1954) with Kelly Freas
- That Sweet Little Old Lady (Part 1 of 2) (1959)
- That Sweet Little Old Lady (Part 1 of 2) (1959) with Kelly Freas
- That Sweet Little Old Lady (Part 1 of 2) (reprint) (2007)
- That Sweet Little Old Lady (Part 1 of 2) (reprint) (2007) with Kelly Freas
- That Sweet Little Old Lady (Part 1 of 2) [2] (1959)
- That Sweet Little Old Lady (Part 1 of 2) [2] (1959) with Freas
- That Sweet Little Old Lady (Part 1 of 2) [2] (reprint) (2007)
- That Sweet Little Old Lady (Part 1 of 2) [2] (reprint) (2007) with Freas
- That Sweet Little Old Lady (Part 1 of 2) [3] (1959)
- That Sweet Little Old Lady (Part 1 of 2) [3] (1959) with Freas
- That Sweet Little Old Lady (Part 1 of 2) [3] (reprint) (2007)
- That Sweet Little Old Lady (Part 1 of 2) [3] (reprint) (2007) with Freas
- That Sweet Little Old Lady (Part 1 of 2) [4] (1959)
- That Sweet Little Old Lady (Part 1 of 2) [4] (1959) with Freas
- That Sweet Little Old Lady (Part 1 of 2) [4] (reprint) (2007)
- That Sweet Little Old Lady (Part 1 of 2) [4] (reprint) (2007) with Freas
- That Sweet Little Old Lady (Part 1 of 2) [5] (1959)
- That Sweet Little Old Lady (Part 1 of 2) [5] (1959) with Freas
- That Sweet Little Old Lady (Part 1 of 2) [5] (reprint) (2007)
- That Sweet Little Old Lady (Part 1 of 2) [5] (reprint) (2007) with Freas
- That Sweet Little Old Lady (Part 1 of 2) [magazine cover] (reprint) (2007)
- That Sweet Little Old Lady (Part 1 of 2) [magazine cover] (reprint) (2007) with Kelly Freas
- That Sweet Little Old Lady (Part 2 of 2) (1959)
- That Sweet Little Old Lady (Part 2 of 2) (1959) with Kelly Freas
- That Sweet Little Old Lady (Part 2 of 2) (reprint) (2007)
- That Sweet Little Old Lady (Part 2 of 2) (reprint) (2007) with Kelly Freas
- That Sweet Little Old Lady (Part 2 of 2) [2] (1959)
- That Sweet Little Old Lady (Part 2 of 2) [2] (1959) with Kelly Freas
- That Sweet Little Old Lady (Part 2 of 2) [2] (reprint) (2007)
- That Sweet Little Old Lady (Part 2 of 2) [2] (reprint) (2007) with Kelly Freas
- That Sweet Little Old Lady (Part 2 of 2) [3] (1959)
- That Sweet Little Old Lady (Part 2 of 2) [3] (1959) with Kelly Freas
- That Sweet Little Old Lady (Part 2 of 2) [3] (reprint) (2007)
- That Sweet Little Old Lady (Part 2 of 2) [3] (reprint) (2007) with Kelly Freas
- That Sweet Little Old Lady (Part 2 of 2) [4] (1959)
- That Sweet Little Old Lady (Part 2 of 2) [4] (1959) with Kelly Freas
- That Sweet Little Old Lady (Part 2 of 2) [4] (reprint) (2007)
- That Sweet Little Old Lady (Part 2 of 2) [4] (reprint) (2007) with Kelly Freas
- That Sweet Little Old Lady (Part 2 of 2) [5] (1959)
- That Sweet Little Old Lady (Part 2 of 2) [5] (1959) with Kelly Freas
- That Sweet Little Old Lady (Part 2 of 2) [5] (reprint) (2007)
- That Sweet Little Old Lady (Part 2 of 2) [5] (reprint) (2007) with Kelly Freas
- The 3rd Party (1955)
- The 3rd Party (1955) with Kelly Freas
- The Abnormality of Being Normal (1956)
- The Abnormality of Being Normal (1956) with Freas
- The Abnormality of Being Normal [2] (1956)
- The Abnormality of Being Normal [2] (1956) with Freas
- The Adventurer (1953)
- The Adventurer (1953) with Freas
- The Alchemist (1966)
- The Alchemist (1966) with Kelly Freas
- The Alchemist [2] (1966)
- The Alchemist [2] (1966) with Kelly Freas
- The Alien Rulers (1968)
- The Alien Rulers (1968) with Kelly Freas
- The Alien Rulers [2] (1968)
- The Alien Rulers [2] (1968) with Kelly Freas
- The Ambassador (1954)
- The Ambassador (1954) with Kelly Freas
- The Ambassador [2] (1954)
- The Ambassador [2] (1954) with Kelly Freas
- The Ark of Mars (1953)
- The Articles of SF (1979)
- The Artist and the Door (1952)
- The Astounding Dr. Amizov (1974)
- The Astounding Dr. Amizov (1974) with Kelly Freas
- The Baalim Problem (1968)
- The Baalim Problem (1968) with Kelly Freas
- The Baalim Problem [2] (1968)
- The Baalim Problem [2] (1968) with Kelly Freas
- The Beast (1984)
- The Best Policy (1957)
- The Best Policy (1957) with Freas
- The Best Policy [2] (1957)
- The Best Policy [2] (1957) with Freas
- The Better Mousetrap (1976)
- The Better Mousetrap (1976) with Kelly Freas
- The Big Black Mark (1975)
- The Big Front Yard (1958)
- The Big Front Yard (1958) with Freas
- The Big Front Yard (1977)
- The Big Front Yard [2] (1958)
- The Big Front Yard [2] (1958) with Freas
- The Big Front Yard [3] (1958)
- The Big Front Yard [3] (1958) with Freas
- The Big Front Yard [4] (1958)
- The Big Front Yard [4] (1958) with Freas
- The Big Front Yard [5] (1958)
- The Big Front Yard [5] (1958) with Freas
- The Big Rock (1969)
- The Big Rock (1969) with Kelly Freas
- The Bodelan Way (1974)
- The Boxie Rebellion (1997)
- The Brides of Ool (1955)
- The Brides of Ool (1955) with Kelly Freas
- The Case of the Perjured Planet (1967)
- The Case of the Perjured Planet (1967) with Kelly Freas
- The Case of the Perjured Planet [2] (1967)
- The Case of the Perjured Planet [2] (1967) with Kelly Freas
- The Cat and the Pendulum (2002)
- The Cat and the Pendulum (2002) with Kelly Freas
- The Choice (1969)
- The Choice (1969) with Kelly Freas
- The City Machine (1972)
- The City Machine (1977)
- The Cold Equations (1954)
- The Cold Equations (1954) with Freas
- The Cold Equations [2] (1954)
- The Cold Equations [2] (1954) with Freas
- The Cold Equations [3] (1954)
- The Cold Equations [3] (1954) with Freas
- The Coming (2000)
- The Coming of Conan (cover) (2001)
- The Common Goal of Nature (1990)
- The Common Goal of Nature (1990) with Kelly Freas
- The Common Goal of Nature [2] (1990)
- The Common Goal of Nature [2] (1990) with Kelly Freas
- The Companions (frontispiece) (2003)
- The Compleat All-American (1967)
- The Compleat All-American (1967) with Kelly Freas
- The Conjurer of Venus (1952)
- The Conjurer of Venus (1952) with Kelly Freas
- The Cosmic Express (1994)
- The Court of the Timesifters (1979)
- The Court of the Timesifters (1979) with Kelly Freas
- The Crystal Crypt (1954)
- The Crystal Crypt (1954) with Kelly Freas
- The Cure-All Merchant (1967)
- The Cure-All Merchant (1967) with Kelly Freas
- The Curious Profession (1956)
- The Curious Profession (1956) with Freas
- The Curious Profession [2] (1956)
- The Curious Profession [2] (1956) with Freas
- The Curious Profession [2] (1956)
- The Curious Profession [3] (1956)
- The Curious Profession [3] (1956) with Freas
- The Custodian (1953)
- The Custodian (1953) with Kelly Freas
- The Custodians (1968)
- The Custodians (1968)
- The Custodians (1968) with Kelly Freas
- The Custodians [2] (1968)
- The Custodians [2] (1968) with Kelly Freas
- The Deadly Sky (1984)
- The Dean of Science Fiction (1979)
- The Deer Lake Sightings (1990)
- The Destroyers (1958)
- The Destroyers (1958) with Freas
- The Devil, You Say? (1957)
- The Devil, You Say? (1957) with Freas
- The Devil, You Say? [2] (1957)
- The Devil, You Say? [2] (1957) with Freas
- The Devil, You Say? [3] (1957)
- The Devil, You Say? [3] (1957) with Freas
- The Dimensioneers (1982)
- The Dip Stick (1954)
- The Dip Stick (1954) with Freas
- The Door into Summer (1958)
- The Door Into Summer (1976)
- The Door Into Summer (1976) with Kelly Freas
- The Door into Summer (2000)
- The Door into Summer (Part 1 of 3) (1956)
- The Door into Summer (Part 1 of 3) (1956) with Kelly Freas
- The Door into Summer (Part 1 of 3) [2] (1956)
- The Door into Summer (Part 1 of 3) [2] (1956) with Kelly Freas
- The Door Into Summer (Part 2 of 3) (1956)
- The Door Into Summer (Part 2 of 3) (1956) with Kelly Freas
- The Door Into Summer (Part 2 of 3) [2] (1956)
- The Door Into Summer (Part 2 of 3) [2] (1956) with Kelly Freas
- The Door into Summer (Part 3 of 3) (1956)
- The Door into Summer (Part 3 of 3) (1956) with Kelly Freas
- The Door into Summer (Part 3 of 3) [2] (1956)
- The Door into Summer (Part 3 of 3) [2] (1956) with Kelly Freas
- The Door into Summer (Part 3 of 3) [3] (1956)
- The Door into Summer (Part 3 of 3) [3] (1956) with Kelly Freas
- The Doormen of Space (1956)
- The Doormen of Space (1956) with Kelly Freas
- The Doorstop (1956)
- The Doorstop (1956) with Freas
- The Double-Edged Rope (1967)
- The Double-Edged Rope (1967) with Kelly Freas
- The Dukes of Desire (1967)
- The Dukes of Desire (1967) with Kelly Freas
- The Dukes of Desire [2] (1967)
- The Dukes of Desire [2] (1967) with Kelly Freas
- The Dwarf Holóbos & the Sword Hogbiter (1994)
- The Dybbuk of Mazel Tov IV (1979)
- The Dybbuk of Mazel Tov IV (1979) with Kelly Freas
- The Elder Profession (1954)
- The Elder Profession (1954) with Kelley Freas
- The Emperor's Fan (1973)
- The Emperor's Fan (1973) with Kelly Freas
- The End of Summer (1954)
- The End of Summer (1954) with Freas
- The End of Summer [2] (1954)
- The End of Summer [2] (1954) with Freas
- The End of Summer [3] (1954)
- The End of Summer [3] (1954) with Freas
- The Ethic of the Assassin (1953)
- The Ethic of the Assassin (1953) with Kelly Freas
- The Executioner (1956)
- The Executioner (1956) with Freas
- The Executioner (1956)
- The Executioner (1956) with Kelly Freas
- The Executioner [2] (1956)
- The Executioner [2] (1956) with Freas
- The Executioner [3] (1956)
- The Executioner [3] (1956) with Freas
- The Executioner [4] (1956)
- The Executioner [4] (1956) with Freas
- The Exile of Evening Star (1999)
- The Exile of Evening Star (1999) with Kelly Freas
- The Eye in the Window (1955)
- The Eye in the Window (1955) with Kelly Freas
- The Eyes of Freedom (2000)
- The Eyes of Freedom (2000) with Kelly Freas
- The Far Look (1956)
- The Far Look (1956) with Freas
- The Far Look (1956)
- The Far Look [2] (1956)
- The Far Look [2] (1956) with Freas
- The Far Look [3] (1956)
- The Far Look [3] (1956) with Freas
- The Far Look [4] (1956)
- The Far Look [4] (1956) with Freas
- The Far Traveller (1976)
- The Far Traveller (1976) with Kelly Freas
- The Far Traveller [2] (1976)
- The Far Traveller [2] (1976) with Kelly Freas
- The Fenris Device (1977)
- The Fifth Ace (1970)
- The Fifth Ace (1970) with Kelly Freas
- The Fifth Ace [2] (1970)
- The Fifth Ace [2] (1970) with Kelly Freas
- The Fishdollar Affair (1958)
- The Fishdollar Affair (1958) with Kelly Freas
- The Five Way Secret Agent (Part 1 of 2) (1969)
- The Five Way Secret Agent (Part 1 of 2) (1969) with Kelly Freas
- The Five Way Secret Agent (Part 1 of 2) [2] (1969)
- The Five Way Secret Agent (Part 1 of 2) [2] (1969) with Kelly Freas
- The Five Way Secret Agent (Part 2 of 2) (1969)
- The Five Way Secret Agent (Part 2 of 2) (1969) with Kelly Freas
- The Five Way Secret Agent (Part 2 of 2) [2] (1969)
- The Five Way Secret Agent (Part 2 of 2) [2] (1969) with Kelly Freas
- The Flavor of Fire (1998)
- The Flavor of Fire (1998) with Kelly Freas
- The Form Master (1968)
- The Form Master (1968) with Kelly Freas
- The Gambling Hell and the Sinful Girl (1975)
- The Gambling Hell and the Sinful Girl (1975) with Kelly Freas
- The Gateway Concordance (Part 1 of 3) (1990)
- The Gateway Concordance (Part 1 of 3) [2] (1990)
- The Gateway Concordance (Part 2 of 3) (1990)
- The Gateway Concordance (Part 2 of 3) [2] (1990)
- The Gateway Concordance (Part 3 of 3) (1990)
- The Gateway Concordance (Part 3 of 3) [2] (1990)
- The Gateway Trip (1990)
- The Gateway Trip: Tales and Vignettes of the Heechee (frontispiece) (1991)
- The Gentle Earth (1957) with Kelly Freas
- The Gentle Earth (1957)
- The Gentle Earth (1957) with Freas
- The Gentle Earth (1977)
- The Gentle Earth [2] (1957)
- The Gentle Earth [2] (1957) with Freas
- The Gentle Earth [3] (1957)
- The Gentle Earth [3] (1957) with Freas
- The Gentle Earth [4] (1957)
- The Gentle Earth [4] (1957) with Freas
- The Gentle Earth [5] (1957)
- The Gentle Earth [5] (1957) with Freas
- The Gentle Earth [6] (1957)
- The Gentle Earth [6] (1957) with Freas
- The Gentle Earth [7] (1957)
- The Gentle Earth [7] (1957) with Freas
- The Gift of the Gods (1955)
- The Gift of the Gods (1955) with Kelly Freas
- The Goblin Reservation (1982)
- The God Pedlars (1968)
- The God Pedlars (1968) with Kelly Freas
- The Golden Halls of Hell (1971)
- The Golden Halls of Hell (1971) with Kelly Freas
- The Golden Halls of Hell [2] (1971)
- The Golden Halls of Hell [2] (1971) with Kelly Freas
- The Golden Judge (1955)
- The Golden Judge (1955) with Freas
- The Golden Judge (reprint) (2008)
- The Golden Judge (reprint) (2008) with Freas
- The Golden Man (1954)
- The Golden Man (1954) with Kelly Freas
- The Great American Economy (1973)
- The Great American Economy (1973) with Kelly Freas
- The Great Illusion (1957)
- The Great Illusion (1957) with Kelly Freas
- The Great Intellect Boom (1969)
- The Great Intellect Boom (1969) with Kelly Freas
- The Greater Thing (1954)
- The Greater Thing (1954) with Kelly Freas
- The Greater Thing [2] (1954)
- The Greater Thing [2] (1954) with Kelly Freas
- The Greater Thing [3] (1954)
- The Greater Thing [3] (1954) with Kelly Freas
- The Greater Thing [4] (1954)
- The Greater Thing [4] (1954) with Kelly Freas
- The Green Hills of Earth (1977)
- The Gulf Between (1953)
- The Gulf Between (1953)
- The Gulf Between (1953) with Kelly Freas
- The Gulf Between (1977)
- The Gulf Between [2] (1953)
- The Gulf Between [2] (1953) with Kelly Freas
- The Gulf Between [3] (1953)
- The Gulf Between [3] (1953) with Kelly Freas
- The Gulf Between [4] (1953)
- The Gulf Between [4] (1953) with Kelly Freas
- The Gulf Between [5] (1953)
- The Gulf Between [5] (1953) with Kelly Freas
- The Guthrie Method (1954)
- The Hammerpond Park Burglary (1996)
- The Hammerpond Park Burglary (1996) with Kelly Freas
- The Happiest Day of Your Life (1970)
- The Happiest Day of Your Life (1970) with Kelly Freas
- The Happiness Effect (1953)
- The Happiness Effect [2] (1953)
- The Happy Clown (1955)
- The Happy Clown (1955) with Kelly Freas
- The Haunt of Horror #2 (cover) (1973) with Kelly Freas
- The Hawks of Arcturus (2000)
- The Healer's War (frontispiece) (2001)
- The Heart's Desire (1990)
- The History of Chan's Journey to the Celestial Regions (2002)
- The History of Chan's Journey to the Celestial Regions (2002) with Kelly Freas
- The Hitch Hikers (1954)
- The Hitch Hikers (1954) with Kelly Freas
- The Holes and John Smith (1954)
- The Holes and John Smith (1954) with Kelly Freas
- The Horse Barbarians (Part 1 of 3) (1968)
- The Horse Barbarians (Part 1 of 3) (1968) with Kelly Freas
- The Horse Barbarians (Part 1 of 3) [2] (1968)
- The Horse Barbarians (Part 1 of 3) [2] (1968) with Kelly Freas
- The Horse Barbarians (Part 2 of 3) (1968)
- The Horse Barbarians (Part 2 of 3) (1968) with Kelly Freas
- The Horse Barbarians (Part 2 of 3) [2] (1968)
- The Horse Barbarians (Part 2 of 3) [2] (1968) with Kelly Freas
- The Horse Barbarians (Part 3 of 3) (1968)
- The Horse Barbarians (Part 3 of 3) (1968) with Kelly Freas
- The Horse Barbarians (Part 3 of 3) [2] (1968)
- The Horse Barbarians (Part 3 of 3) [2] (1968) with Kelly Freas
- The Horus Errand (1974)
- The Horus Errand (1974) with Kelly Freas
- The Horus Errand [2] (1974)
- The Horus Errand [2] (1974) with Kelly Freas
- The Hugo (1979)
- The Hunting Lodge (1954)
- The Hunting Lodge (1954) with Kelly Freas
- The Hunting Lodge [2] (1954)
- The Hunting Lodge [2] (1954) with Kelly Freas
- The Hunting Lodge [3] (1954)
- The Hunting Lodge [3] (1954) with Kelly Freas
- The Hunting Lodge [4] (1954)
- The Hunting Lodge [4] (1954) with Kelly Freas
- The Incompetent (1971)
- The Incompetent (1971) with Kelly Freas
- The Infinity Sense (1968)
- The Infinity Sense (1968) with Kelly Freas
- The Infinity Sense [2] (1968)
- The Infinity Sense [2] (1968) with Kelly Freas
- The Ipswich Phial (1976)
- The Ipswich Phial (1976) with Kelly Freas
- The Ipswich Phial [2] (1976)
- The Ipswich Phial [2] (1976) with Kelly Freas
- The Jewel Field (1977)
- The Journal of the World Science Fiction Society, Inc., Newyorcon Program Issue (cover) (1956)
- The Judas Bug (1967)
- The Judas Bug (1967) with Kelly Freas
- The Judas Bug [2] (1967)
- The Judas Bug [2] (1967) with Kelly Freas
- The Kenzie Report (1953)
- The Kenzie Report (1953) with Kelly Freas
- The King Who Wasn't (2001)
- The King's Legions (1967)
- The King's Legions (1967) with Kelly Freas
- The King's Legions [2] (1967)
- The King's Legions [2] (1967) with Kelly Freas
- The Last Command (1967)
- The Last Command (1967) with Kelly Freas
- The Last Dame (1953)
- The Last Dame (1953) with Kelly Freas
- The Last Martian (1942)
- The Last Martian (1942) with Kelly Freas
- The Law Breakers (1959)
- The Law Breakers (1959) with Kelly Freas
- The Law Breakers [2] (1959)
- The Law Breakers [2] (1959) with Kelly Freas
- The Law Breakers [3] (1959)
- The Law Breakers [3] (1959) with Kelly Freas
- The Law Breakers [4] (1959)
- The Law Breakers [4] (1959) with Kelly Freas
- The Left Hand Of Darkness (2000)
- The Left Hand of Darkness (frontispiece) (1993)
- The Life of Your Time (1965)
- The Life of Your Time (1965) with Kelly Freas
- The Light That Never Was (1977)
- The Lion Game (2000)
- The Lion Game (Part 1 of 2) (1971)
- The Lion Game (Part 1 of 2) (1971) with Kelly Freas
- The Lion Game (Part 1 of 2) [2] (1971)
- The Lion Game (Part 1 of 2) [2] (1971) with Kelly Freas
- The Lion Game (Part 2 of 2) (1971)
- The Lion Game (Part 2 of 2) (1971) with Kelly Freas
- The Lion Game (Part 2 of 2) [2] (1971)
- The Lion Game (Part 2 of 2) [2] (1971) with Kelly Freas
- The Listeners (1991)
- The Listeners (2000)
- The Listeners (frontispiece) (1991)
- The Little Finger on the Left Hand (1990)
- The Little Giant (1956)
- The Little Giant (1956) with Freas
- The Live Coward (1956)
- The Live Coward (1956) with Freas
- The Live Coward [2] (1956)
- The Live Coward [2] (1956) with Freas
- The Live Coward [3] (1956)
- The Live Coward [3] (1956) with Freas
- The Long Way Home (1955)
- The Long Way Home (1977)
- The Long Way Home (Part 1 of 4) (1955)
- The Long Way Home (Part 1 of 4) (1955) with Kelly Freas
- The Long Way Home (Part 1 of 4) [2] (1955)
- The Long Way Home (Part 1 of 4) [2] (1955) with Kelly Freas
- The Long Way Home (Part 1 of 4) [3] (1955)
- The Long Way Home (Part 1 of 4) [3] (1955) with Kelly Freas
- The Long Way Home (Part 1 of 4) [4] (1955)
- The Long Way Home (Part 1 of 4) [4] (1955) with Kelly Freas
- The Long Way Home (Part 1 of 4) [5] (1955)
- The Long Way Home (Part 1 of 4) [5] (1955) with Kelly Freas
- The Long Way Home (Part 2 of 4) (1955)
- The Long Way Home (Part 2 of 4) (1955) with Freas
- The Long Way Home (Part 2 of 4) [2] (1955)
- The Long Way Home (Part 2 of 4) [2] (1955) with Freas
- The Long Way Home (Part 2 of 4) [3] (1955)
- The Long Way Home (Part 2 of 4) [3] (1955) with Freas
- The Long Way Home (Part 2 of 4) [4] (1955)
- The Long Way Home (Part 2 of 4) [4] (1955) with Freas
- The Long Way Home (Part 3 of 4) (1955)
- The Long Way Home (Part 3 of 4) (1955) with Freas
- The Long Way Home (Part 3 of 4) [2] (1955)
- The Long Way Home (Part 3 of 4) [2] (1955) with Freas
- The Long Way Home (Part 3 of 4) [3] (1955)
- The Long Way Home (Part 3 of 4) [3] (1955) with Freas
- The Long Way Home (Part 3 of 4) [4] (1955)
- The Long Way Home (Part 3 of 4) [4] (1955) with Freas
- The Long Way Home (Part 3 of 4) [5] (1955)
- The Long Way Home (Part 3 of 4) [5] (1955) with Freas
- The Long Way Home (Part 4 of 4) (1955)
- The Long Way Home (Part 4 of 4) (1955) with Freas
- The Long Way Home (Part 4 of 4) [2] (1955)
- The Long Way Home (Part 4 of 4) [2] (1955) with Freas
- The Long Way Home (Part 4 of 4) [3] (1955)
- The Long Way Home (Part 4 of 4) [3] (1955) with Freas
- The Long Way Home (Part 4 of 4) [4] (1955)
- The Long Way Home (Part 4 of 4) [4] (1955) with Freas
- The Long Way Home (Part 4 of 4) [5] (1955)
- The Long Way Home (Part 4 of 4) [5] (1955) with Freas
- The Long Way Home [2] (1955)
- The Long Way Home [3] (1955)
- The Long Way Home [4] (1955)
- The Lost Art of Twilight (1990)
- The Lost Tribes of Venus (1954)
- The Lost Tribes of Venus (1954)
- The Lost Tribes of Venus (1954) with Kelly Freas
- The Luminous Blonde (1952)
- The Luminous Blonde (1952) with Kelly Freas
- The Lunar Lichen (1960)
- The Lunar Lichen (1960) with Kelly Freas
- The Maelstrom's Eye (2000)
- The Magazine of Fantasy and Science Fiction, July 1977 (cover) (1999) with Kelly Freas
- The Man the Tech-Men Made (1954)
- The Man the Tech-Men Made (1954) with Kelly Freas
- The Man the Tech-Men Made [2] (1954)
- The Man the Tech-Men Made [2] (1954) with Kelly Freas
- The Man Who Was Heavily into Revenge (1978)
- The Man Who Was Heavily into Revenge (1978) with Kelly Freas
- The Man with the Anteater (1971)
- The Man with the Anteater (1971) with Kelly Freas
- The Man with the Corkscrew Mind (1957)
- The Man with the Corkscrew Mind (1957) with Freas
- The Man with the Corkscrew Mind [2] (1957)
- The Man with the Corkscrew Mind [2] (1957) with Freas
- The Man with the Corkscrew Mind [3] (1957)
- The Man with the Corkscrew Mind [3] (1957) with Freas
- The Martians (2000)
- The Martians (frontispiece) (1999)
- The Marvelous Movie (1954)
- The Marvelous Movie (1954) with Freas
- The Mechanic (1966)
- The Mechanic (1966) with Kelly Freas
- The Mechanic (1977)
- The Mechanic [2] (1966)
- The Mechanic [2] (1966) with Kelly Freas
- The Mercenary (1972)
- The Mercenary (1972) with Kelly Freas
- The Mercenary [2] (1972)
- The Mercenary [2] (1972) with Kelly Freas
- The Merchants of Venus (1954)
- The Merchants of Venus (1954) with Freas
- The Mile-Long Spaceship (1957)
- The Mile-Long Spaceship (1957) with Freas
- The Mind Net (1974)
- The Mind of the Artist (1994)
- The Mind-Changer (1969)
- The Mind-Changer (1969) with Kelly Freas
- The Mind-Changer [2] (1969)
- The Mind-Changer [2] (1969) with Kelly Freas
- The Miracle-Workers (1958)
- The Miracle-Workers (1958) with Freas
- The Miracle-Workers [2] (1958)
- The Miracle-Workers [2] (1958) with Freas
- The Miracle-Workers [3] (1958)
- The Miracle-Workers [3] (1958) with Freas
- The Miracle-Workers [4] (1958)
- The Miracle-Workers [4] (1958) with Freas
- The Miracle-Workers [5] (1958)
- The Miracle-Workers [5] (1958) with Freas
- The Miracle-Workers [6] (1958)
- The Miracle-Workers [6] (1958) with Freas
- The Mirror (1988)
- The Missile Smasher (1966)
- The Missile Smasher (1966) with Kelly Freas
- The Missing Man (1971)
- The Missing Man (1971) with Kelly Freas
- The Missing Man [2] (1971)
- The Missing Man [2] (1971) with Kelly Freas
- The Missing Mass (2000)
- The Missing Mass (2000) with Kelly Freas
- The Mosaic and the Plate Glass (1980)
- The Mothballed Spaceship (1973)
- The Mothballed Spaceship (1973) with Kelly Freas
- The Name of Our Field (1978)
- The Name of This City (1954)
- The Name of This City (1954) with Kelly Freas
- The Negotiators (1975)
- The Negotiators (1975) with Kelly Freas
- The Non-Statistical Man (1956)
- The Non-Statistical Man (1956) with Kelly Freas
- The Non-Statistical Man [2] (1956)
- The Non-Statistical Man [2] (1956) with Kelly Freas
- The Numbers Racket (1993)
- The Numbers Racket (1993) with Kelly Freas
- The Observer (1972)
- The Observer (1972) with Kelly Freas
- The Officers of the Bridge (1976)
- The Old Man of Ondine (1971)
- The Old Man of Ondine (1971) with Kelly Freas
- The Old Man of Ondine [2] (1971)
- The Old Man of Ondine [2] (1971) with Kelly Freas
- The Old Shill Game (1967)
- The Old Shill Game (1967) with Kelly Freas
- The Other Culture (1969)
- The Other Culture (1969) with Kelly Freas
- The Other Culture [2] (1969)
- The Other Culture [2] (1969) with Kelly Freas
- The Outposter (Part 1 of 3) (1971)
- The Outposter (Part 1 of 3) (1971) with Kelly Freas
- The Outposter (Part 1 of 3) [2] (1971)
- The Outposter (Part 1 of 3) [2] (1971) with Kelly Freas
- The Outposter (Part 1 of 3) [3] (1971)
- The Outposter (Part 1 of 3) [3] (1971) with Kelly Freas
- The Outposter (Part 2 of 3) (1971)
- The Outposter (Part 2 of 3) (1971) with Kelly Freas
- The Outposter (Part 2 of 3) [2] (1971)
- The Outposter (Part 2 of 3) [2] (1971) with Kelly Freas
- The Outposter (Part 3 of 3) (1971)
- The Outposter (Part 3 of 3) (1971) with Kelly Freas
- The Outposter (Part 3 of 3) [2] (1971)
- The Outposter (Part 3 of 3) [2] (1971) with Kelly Freas
- The Pattern (1955)
- The Pattern (1955) with Kelly Freas
- The Peddler's Apprentice (1975)
- The Peddler's Apprentice (1975) with Kelly Freas
- The Peddler's Apprentice [2] (1975)
- The Peddler's Apprentice [2] (1975) with Kelly Freas
- The Piper (1977)
- The Pirate (1968)
- The Pirate (1968) with Kelly Freas
- The Pirate [2] (1968)
- The Pirate [2] (1968) with Kelly Freas
- The Pirates of Ersatz (Part 1 of 3) (1959)
- The Pirates of Ersatz (Part 1 of 3) (1959) with Freas
- The Pirates of Ersatz (Part 1 of 3) (reprint) (2007)
- The Pirates of Ersatz (Part 1 of 3) (reprint) (2007) with Freas
- The Pirates of Ersatz (Part 1 of 3) [2] (1959)
- The Pirates of Ersatz (Part 1 of 3) [2] (1959) with Freas
- The Pirates of Ersatz (Part 1 of 3) [2] (reprint) (2007)
- The Pirates of Ersatz (Part 1 of 3) [2] (reprint) (2007) with Freas
- The Pirates of Ersatz (Part 1 of 3) [3] (1959)
- The Pirates of Ersatz (Part 1 of 3) [3] (1959) with Freas
- The Pirates of Ersatz (Part 1 of 3) [3] (reprint) (2007)
- The Pirates of Ersatz (Part 1 of 3) [3] (reprint) (2007) with Freas
- The Pirates of Ersatz (Part 2 of 3) (1959)
- The Pirates of Ersatz (Part 2 of 3) (1959)
- The Pirates of Ersatz (Part 2 of 3) (1959) with Freas
- The Pirates of Ersatz (Part 2 of 3) (1959) with Freas
- The Pirates of Ersatz (Part 2 of 3) (reprint) (2007)
- The Pirates of Ersatz (Part 2 of 3) (reprint) (2007) with Freas
- The Pirates of Ersatz (Part 2 of 3) [2] (1959)
- The Pirates of Ersatz (Part 2 of 3) [2] (1959)
- The Pirates of Ersatz (Part 2 of 3) [2] (1959) with Freas
- The Pirates of Ersatz (Part 2 of 3) [2] (1959) with Freas
- The Pirates of Ersatz (Part 2 of 3) [2] (reprint) (2007)
- The Pirates of Ersatz (Part 2 of 3) [2] (reprint) (2007) with Freas
- The Pirates of Ersatz (Part 2 of 3) [3] (1959)
- The Pirates of Ersatz (Part 2 of 3) [3] (1959)
- The Pirates of Ersatz (Part 2 of 3) [3] (1959) with Freas
- The Pirates of Ersatz (Part 2 of 3) [3] (1959) with Freas
- The Pirates of Ersatz (Part 2 of 3) [3] (reprint) (2007)
- The Pirates of Ersatz (Part 2 of 3) [3] (reprint) (2007) with Freas
- The Pirates of Ersatz (Part 2 of 3) [4] (1959)
- The Pirates of Ersatz (Part 2 of 3) [4] (1959)
- The Pirates of Ersatz (Part 2 of 3) [4] (1959) with Freas
- The Pirates of Ersatz (Part 2 of 3) [4] (1959) with Freas
- The Pirates of Ersatz (Part 2 of 3) [4] (reprint) (2007)
- The Pirates of Ersatz (Part 2 of 3) [4] (reprint) (2007) with Freas
- The Pirates of Ersatz (Part 2 of 3) [5] (1959)
- The Pirates of Ersatz (Part 2 of 3) [5] (1959)
- The Pirates of Ersatz (Part 2 of 3) [5] (1959) with Freas
- The Pirates of Ersatz (Part 2 of 3) [5] (1959) with Freas
- The Pirates of Ersatz (Part 2 of 3) [5] (reprint) (2007)
- The Pirates of Ersatz (Part 2 of 3) [5] (reprint) (2007) with Freas
- The Pirates of Ersatz (Part 3 of 3) (1959)
- The Pirates of Ersatz (Part 3 of 3) (1959) with Freas
- The Pirates of Ersatz (Part 3 of 3) (reprint) (2007)
- The Pirates of Ersatz (Part 3 of 3) (reprint) (2007) with Freas
- The Pirates of Ersatz (Part 3 of 3) [2] (1959)
- The Pirates of Ersatz (Part 3 of 3) [2] (1959) with Freas
- The Pirates of Ersatz (Part 3 of 3) [2] (reprint) (2007)
- The Pirates of Ersatz (Part 3 of 3) [2] (reprint) (2007) with Freas
- The Pirates of Ersatz (Part 3 of 3) [3] (1959)
- The Pirates of Ersatz (Part 3 of 3) [3] (1959) with Freas
- The Pirates of Ersatz (Part 3 of 3) [3] (reprint) (2007)
- The Pirates of Ersatz (Part 3 of 3) [3] (reprint) (2007) with Freas
- The Pirates of Ersatz (Part 3 of 3) [4] (1959)
- The Pirates of Ersatz (Part 3 of 3) [4] (1959) with Freas
- The Pirates of Ersatz (Part 3 of 3) [4] (reprint) (2007)
- The Pirates of Ersatz (Part 3 of 3) [4] (reprint) (2007) with Freas
- The Pirates of Ersatz (Part 3 of 3) [5] (1959)
- The Pirates of Ersatz (Part 3 of 3) [5] (1959) with Freas
- The Pirates of Ersatz (Part 3 of 3) [5] (reprint) (2007)
- The Pirates of Ersatz (Part 3 of 3) [5] (reprint) (2007) with Freas
- The Pirates of Ersatz [magazine cover] (reprint) (2007)
- The Pirates of Ersatz [magazine cover] (reprint) (2007) with Kelly Freas
- The Pressure of Time (1980)
- The Pressure of Time (1980) with Frank Kelly Frease
- The Prison of the Stars (1953)
- The Prison of the Stars (1953) with Kelly Freas
- The Pritcher Mass (Part 1 of 3) (1972)
- The Pritcher Mass (Part 1 of 3) (1972) with Kelly Freas
- The Pritcher Mass (Part 1 of 3) [2] (1972)
- The Pritcher Mass (Part 1 of 3) [2] (1972) with Kelly Freas
- The Pritcher Mass (Part 2 of 3) (1972)
- The Pritcher Mass (Part 2 of 3) (1972) with Kelly Freas
- The Pritcher Mass (Part 2 of 3) [2] (1972)
- The Pritcher Mass (Part 2 of 3) [2] (1972) with Kelly Freas
- The Pritcher Mass (Part 3 of 3) (1972)
- The Pritcher Mass (Part 3 of 3) (1972) with Kelly Freas
- The Pritcher Mass (Part 3 of 3) [2] (1972)
- The Pritcher Mass (Part 3 of 3) [2] (1972) with Kelly Freas
- The Probability Man (1977)
- The Professional Touch (1959)
- The Professional Touch (1959) with Freas
- The Professional Touch (1959)
- The Professional Touch [2] (1959)
- The Professional Touch [2] (1959) with Freas
- The Professional Touch [2] (1959)
- The Professional Touch [3] (1959)
- The Professional Touch [3] (1959) with Freas
- The Promise (1985)
- The Promise (1985) with Kelly Freas
- The Pronounced Effect (1990)
- The Proxies (1955)
- The Proxies (1955) with Kelly Freas
- The Pure Observers (1958)
- The Pure Observers (1958) with Kelly Freas
- The Purple Pariah (1954)
- The Purple Pariah (1954) with Kelly Freas
- The Queen Bee (1958)
- The Queen Bee (1958) with Freas
- The Queen Bee [2] (1958)
- The Queen Bee [2] (1958) with Freas
- The Queen Bee [3] (1958)
- The Queen Bee [3] (1958) with Freas
- The Queen Bee [4] (1958)
- The Queen Bee [4] (1958) with Freas
- The Queen's Messenger (1957)
- The Queen's Messenger (1957) with Freas
- The Queen's Messenger [2] (1957)
- The Queen's Messenger [2] (1957) with Freas
- The Queen's Messenger [3] (1957)
- The Queen's Messenger [3] (1957) with Freas
- The Raven and The Hawk (1974)
- The Raven and The Hawk (1974) with Kelly Freas
- The Raven and The Hawk [2] (1974)
- The Raven and The Hawk [2] (1974) with Kelly Freas
- The Red Tape War (2000)
- The Red Tape War (cover) (2012)
- The Regiments of Night (frontispiece) (1972)
- The Regiments of Night (frontispiece) (1972) with Kelly Freas
- The Reluctant Ambassadors (1968)
- The Reluctant Ambassadors (1968) with Kelly Freas
- The Reluctant Ambassadors [2] (1968)
- The Reluctant Ambassadors [2] (1968) with Kelly Freas
- The Reluctant Critic (1978)
- The Restoration (1975)
- The Restoration (1975) with Kelly Freas
- The Restoration [2] (1975)
- The Restoration [2] (1975) with Kelly Freas
- The Restoration [3] (1975)
- The Restoration [3] (1975) with Kelly Freas
- The Restoration [4] (1975)
- The Restoration [4] (1975) with Kelly Freas
- The Return (1954)
- The Return (1954) with Kelly Freas
- The Return (1954)
- The Return (reprint) (2006)
- The Return (reprint) (2006) with Kelly Freas
- The Return [2] (1954)
- The Return [2] (1954) with Kelly Freas
- The Return [2] (1954)
- The Return [2] (reprint) (2006)
- The Return [2] (reprint) (2006) with Kelly Freas
- The Return [3] (1954)
- The Return [3] (1954) with Kelly Freas
- The Return [3] (reprint) (2006)
- The Return [3] (reprint) (2006) with Kelly Freas
- The Return [4] (1954)
- The Return [4] (1954) with Kelly Freas
- The Return [4] (reprint) (2006)
- The Return [4] (reprint) (2006) with Kelly Freas
- The Return from Troy (1957)
- The Return from Troy (1957) with Freas
- The Royal Road (1968)
- The Royal Road (1968) with Kelly Freas
- The Royal Road [2] (1968)
- The Royal Road [2] (1968) with Kelly Freas
- The Ruins of Isis (1978)
- The Ruins of Isis (1978) with Kelly Freas
- The School (1954)
- The School (1954) with Freas
- The School [2] (1954)
- The School [2] (1954) with Freas
- The School [3] (1954)
- The School [3] (1954) with Freas
- The School [4] (1954)
- The School [4] (1954) with Freas
- The School [5] (1954)
- The School [5] (1954) with Freas
- The Science Fiction Hall of Fame (1979)
- The Science Fiction Hall of Fame (1979) with Kelly Freas
- The Science Fiction Hall of Fame, Volume Two A: The Greatest Science Fiction Novellas of All Time Chosen by the Science Fiction Writers of America (2001)
- The Science Fiction Hall of Fame, Volume Two B: The Greatest Science Fiction Novellas of All Time Chosen by the Science Fiction Writres of America (2001)
- The Scientist As Villain (1979)
- The Searcher (1966)
- The Searcher (1966) with Kelly Freas
- The Searcher [2] (1966)
- The Searcher [2] (1966) with Kelly Freas
- The Second Kind of Loneliness (1972)
- The Second Kind of Loneliness (1972) with Kelly Freas
- The Sedulous Apes (1955)
- The Sedulous Apes (1955) with Kelly Freas
- The Shape of Plowshares (1977)
- The Shape of Plowshares (1977) with Kelly Freas
- The Sharpies (1953)
- The Ship Who Mourned (1966)
- The Ship Who Mourned (1966) with Kelly Freas
- The Signals (1966)
- The Signals (1966) with Kelly Freas
- The Sins of the Fathers (Part 1 of 3) (1973)
- The Sins of the Fathers (Part 1 of 3) (1973) with Kelly Freas
- The Sins of the Fathers (Part 1 of 3) [2] (1973)
- The Sins of the Fathers (Part 1 of 3) [2] (1973) with Kelly Freas
- The Sins of the Fathers (Part 1 of 3) [3] (1973)
- The Sins of the Fathers (Part 1 of 3) [3] (1973) with Kelly Freas
- The Sins of the Fathers (Part 1 of 3) [4] (1973)
- The Sins of the Fathers (Part 1 of 3) [4] (1973) with Kelly Freas
- The Sins of the Fathers (Part 2 of 3) (1973)
- The Sins of the Fathers (Part 2 of 3) (1973) with Kelly Freas
- The Sins of the Fathers (Part 2 of 3) [2] (1973)
- The Sins of the Fathers (Part 2 of 3) [2] (1973) with Kelly Freas
- The Sins of the Fathers (Part 2 of 3) [3] (1973)
- The Sins of the Fathers (Part 2 of 3) [3] (1973) with Kelly Freas
- The Sins of the Fathers (Part 3 of 3) (1974)
- The Sins of the Fathers (Part 3 of 3) (1974) with Kelly Freas
- The Sins of the Fathers (Part 3 of 3) [2] (1974)
- The Sins of the Fathers (Part 3 of 3) [2] (1974) with Kelly Freas
- The Sins of the Fathers (Part 3 of 3) [3] (1974)
- The Sins of the Fathers (Part 3 of 3) [3] (1974) with Kelly Freas
- The Sins of the Fathers (Part 3 of 3) [4] (1974)
- The Sins of the Fathers (Part 3 of 3) [4] (1974) with Kelly Freas
- The Siren Stars (Part 1 of 3) (1970)
- The Siren Stars (Part 1 of 3) (1970) with Kelly Freas
- The Siren Stars (Part 1 of 3) [2] (1970)
- The Siren Stars (Part 1 of 3) [2] (1970) with Kelly Freas
- The Siren Stars (Part 2 of 3) (1970)
- The Siren Stars (Part 2 of 3) (1970) with Kelly Freas
- The Siren Stars (Part 2 of 3) [2] (1970)
- The Siren Stars (Part 2 of 3) [2] (1970) with Kelly Freas
- The Siren Stars (Part 3 of 3) (1970)
- The Siren Stars (Part 3 of 3) (1970) with Kelly Freas
- The Siren Stars (Part 3 of 3) [2] (1970)
- The Siren Stars (Part 3 of 3) [2] (1970) with Kelly Freas
- The Skies Discrowned (1977)
- The Solar System (1980)
- The Songs of Summer (1956)
- The Songs of Summer (1956) with Kelly Freas
- The Spacemice Incident (2003)
- The Spacemice Incident (2003) with Kelly Freas
- The Spacewreck of Old Ninety-Seven (1983)
- The Stainless Steel Rat (1957)
- The Stainless Steel Rat (1957) with Freas
- The Stainless Steel Rat [2] (1957)
- The Stainless Steel Rat [2] (1957) with Freas
- The Stainless Steel Rat [3] (1957)
- The Stainless Steel Rat [3] (1957) with Freas
- The Star-Crowned Kings (1977)
- The Stardroppers (1977)
- The Stone That Never Came Down (1975)
- The Strangers (1955)
- The Strangers (1955) with Kelly Freas
- The Strangers (1955)
- The Strangers (1955) with Kelly Freas
- The Sun and Moon (1980)
- The Super Hugos (2000)
- The Swamp Was Upside Down (1956)
- The Swamp Was Upside Down (1956) with Freas
- The Swamp Was Upside Down [2] (1956)
- The Swamp Was Upside Down [2] (1956) with Freas
- The Swamp Was Upside Down [3] (1956)
- The Swamp Was Upside Down [3] (1956) with Freas
- The Swamp Was Upside Down [4] (1956)
- The Swamp Was Upside Down [4] (1956) with Freas
- The Swamp Was Upside Down [5] (1956)
- The Swamp Was Upside Down [5] (1956) with Freas
- The Sword of Cain (1972)
- The Sword of Cain (1972) with Kelly Freas
- The Sword of Cain [2] (1972)
- The Sword of Cain [2] (1972) with Kelly Freas
- The Symbiotes (1972)
- The Symbiotes (1972) with Kelly Freas
- The Symbiotes [2] (1972)
- The Symbiotes [2] (1972) with Kelly Freas
- The Tactics of Mistake (Part 1 of 4) (1970)
- The Tactics of Mistake (Part 1 of 4) (1970) with Kelly Freas
- The Tactics of Mistake (Part 1 of 4) [2] (1970)
- The Tactics of Mistake (Part 1 of 4) [2] (1970) with Kelly Freas
- The Tactics of Mistake (Part 1 of 4) [3] (1970)
- The Tactics of Mistake (Part 1 of 4) [3] (1970) with Kelly Freas
- The Tactics of Mistake (Part 1 of 4) [4] (1970)
- The Tactics of Mistake (Part 1 of 4) [4] (1970) with Kelly Freas
- The Tactics of Mistake (Part 2 of 4) (1970)
- The Tactics of Mistake (Part 2 of 4) (1970) with Kelly Freas
- The Tactics of Mistake (Part 2 of 4) [2] (1970)
- The Tactics of Mistake (Part 2 of 4) [2] (1970) with Kelly Freas
- The Tactics of Mistake (Part 2 of 4) [3] (1970)
- The Tactics of Mistake (Part 2 of 4) [3] (1970) with Kelly Freas
- The Tactics of Mistake (Part 2 of 4) [4] (1970)
- The Tactics of Mistake (Part 2 of 4) [4] (1970) with Kelly Freas
- The Tactics of Mistake (Part 3 of 4) (1970)
- The Tactics of Mistake (Part 3 of 4) (1970) with Kelly Freas
- The Tactics of Mistake (Part 3 of 4) [2] (1970)
- The Tactics of Mistake (Part 3 of 4) [2] (1970) with Kelly Freas
- The Tactics of Mistake (Part 4 of 4) (1971)
- The Tactics of Mistake (Part 4 of 4) (1971) with Kelly Freas
- The Tactics of Mistake (Part 4 of 4) [2] (1971)
- The Tactics of Mistake (Part 4 of 4) [2] (1971) with Kelly Freas
- The Tactics of Mistake (Part 4 of 4) [3] (1971)
- The Tactics of Mistake (Part 4 of 4) [3] (1971) with Kelly Freas
- The Tales They Tell (1958)
- The Tales They Tell (1958) with Kelly Freas
- The Taranth Stone (2000)
- The Taranth Stone (2000) with Kelly Freas
- The Tax Man (1975)
- The Tax Man (1975) with Kelly Freas
- The Telzey Toy (1971)
- The Telzey Toy (1971) with Kelly Freas
- The Telzey Toy (2000)
- The Telzey Toy [2] (1971)
- The Telzey Toy [2] (1971) with Kelly Freas
- The Test Colony (1954)
- The Test Colony (1954) with Kelly Freas
- The Test Colony (2012) with Freas
- The Test Stand (1955)
- The Test Stand (1955) with Freas
- The Third City (1956)
- The Third City (1956) with Freas
- The Ties That Bind (1954)
- The Ties That Bind (1954) with Kelly Freas
- The Time-Techs of Kra (1954)
- The Time-Techs of Kra (1954) with Kelly Freas
- The Tower of Zanid (Part 1 of 4) (1958)
- The Tower of Zanid (Part 1 of 4) (1958) with Kelly Freas
- The Tower of Zanid (Part 2 of 4) (1958)
- The Tower of Zanid (Part 2 of 4) (1958) with Freas
- The Tower of Zanid (Part 3 of 4) (1958)
- The Tower of Zanid (Part 3 of 4) (1958) with Freas
- The Tower of Zanid (Part 4 of 4) (1958)
- The Tower of Zanid (Part 4 of 4) (1958) with Freas
- The Treasure is Mine! (1956)
- The Treasure is Mine! (1956) with Kelly Freas
- The Trouble With You Earth People (1980)
- The Trouble with You Earth People (1980) with Kelly Freas
- The Troublesome Kordae Alliance and How It Was Settled (1988)
- The Turning Wheel (1954)
- The Turning Wheel (1954) with Kelly Freas
- The Twilight of the Guards, or, The Plowshare Conundrum (1994)
- The Twilight of the Guards, or, The Plowshare Conundrum (1994) with Kelly Freas
- The Twilight Zone Gallery: Kelly Freas (1988)
- The Twilight Zone Gallery: Kelly Freas (1988) with Kelly Freas
- The Ultimate Danger (1968)
- The Ultimate Danger (1968) with Kelly Freas
- The Uninvited Guest (1967)
- The Uninvited Guest (1967) with Kelly Freas
- The Unreachable Stars (1971)
- The Unreachable Stars (1971) with Kelly Freas
- The Unreachable Stars [2] (1971)
- The Unreachable Stars [2] (1971) with Kelly Freas
- The Unreconstructed M (1957)
- The Unreconstructed M (1957) with Freas
- The Untouchable Adolescents (1957)
- The Untouchable Adolescents (1957) with Kelly Freas
- The Veteran (1965)
- The Veteran (1965) with Kelly Freas
- The Victor (1953)
- The Victor (1953) with Kelly Freas
- The Visitors (1969)
- The Visitors (1969) with Kelly Freas
- The Vocabulary of SF (1979)
- The Wanton of Argus (1953)
- The Wanton of Argus (1953) with Kelly Freas
- The Wanton of Argus [2] (1953)
- The Wanton of Argus [2] (1953) with Kelly Freas
- The War is Over (1957)
- The War is Over (1957) with Freas
- The Warriors of Dawn (1975)
- The Warriors of Dawn (1977)
- The Wayward Course (1954)
- The Weeblies (1953)
- The Weeblies (1953) with Freas
- The Werewolf of Ponkert (1953)
- The Werewolf Principle (1982)
- The Whenabouts of Burr (1977)
- The Wishing Season (2000)
- The Witches of Manhattan (1978)
- The Witches of Manhattan [2] (1978)
- The Witches of Manhattan [3] (1978)
- The Witches of Manhattan [4] (1978)
- The Witches of Manhattan [5] (1978)
- The Witches of Manhattan [6] (1978)
- The Wizards of Senchuria (2000) with Kelly Freas
- The World Menders (2000)
- The World Menders (Part 1 of 3) (1971)
- The World Menders (Part 1 of 3) (1971) with Kelly Freas
- The World Menders (Part 1 of 3) [2] (1971)
- The World Menders (Part 1 of 3) [2] (1971) with Kelly Freas
- The World Menders (Part 1 of 3) [3] (1971)
- The World Menders (Part 1 of 3) [3] (1971) with Kelly Freas
- The World Menders (Part 2 of 3) (1971)
- The World Menders (Part 2 of 3) (1971) with Kelly Freas
- The World Menders (Part 2 of 3) [2] (1971)
- The World Menders (Part 2 of 3) [2] (1971) with Kelly Freas
- The World Menders (Part 3 of 3) (1971)
- The World Menders (Part 3 of 3) (1971) with Kelly Freas
- The World Menders (Part 3 of 3) [2] (1971)
- The World Menders (Part 3 of 3) [2] (1971) with Kelly Freas
- The World Menders (Part 3 of 3) [3] (1971)
- The World Menders (Part 3 of 3) [3] (1971) with Kelly Freas
- The World Science Fiction Convention Since 1939 (ConFederation Program Book) (1986)
- The Yngling (Part 1 of 2) (1969)
- The Yngling (Part 1 of 2) (1969) with Kelly Freas
- The Yngling (Part 1 of 2) [2] (1969)
- The Yngling (Part 1 of 2) [2] (1969) with Kelly Freas
- The Yngling (Part 2 of 2) (1969)
- The Yngling (Part 2 of 2) (1969) with Kelly Freas
- The Yngling (Part 2 of 2) [2] (1969)
- The Yngling (Part 2 of 2) [2] (1969) with Kelly Freas
- There Is a Crooked Man (1967)
- There Is a Crooked Man (1967) with Kelly Freas
- There Is a Crooked Man [2] (1967)
- There Is a Crooked Man [2] (1967) with Kelly Freas
- There Is a Crooked Man [3] (1967)
- There Is a Crooked Man [3] (1967) with Kelly Freas
- There Is a Crooked Man [4] (1967)
- There Is a Crooked Man [4] (1967) with Kelly Freas
- There Is a Crooked Man [5] (1967)
- There Is a Crooked Man [5] (1967) with Kelly Freas
- There Is a Crooked Man [6] (1967)
- There Is a Crooked Man [6] (1967) with Kelly Freas
- There is a Tide (1968)
- There is a Tide (1968) with Kelly Freas
- There is a Tide [2] (1968)
- There is a Tide [2] (1968) with Kelly Freas
- There Ought to Be a Lore (1954)
- There Ought to Be a Lore (1954) with Kelly Freas
- They'd Rather Be Right (1954)
- They'd Rather Be Right (Part 1 of 4) (1954)
- They'd Rather Be Right (Part 1 of 4) (1954) with Freas
- They'd Rather Be Right (Part 1 of 4) [2] (1954)
- They'd Rather Be Right (Part 1 of 4) [2] (1954) with Freas
- They'd Rather Be Right (Part 1 of 4) [3] (1954)
- They'd Rather Be Right (Part 1 of 4) [3] (1954) with Freas
- They'd Rather Be Right (Part 1 of 4) [4] (1954)
- They'd Rather Be Right (Part 1 of 4) [4] (1954) with Freas
- They'd Rather Be Right (Part 2 of 4) (1954)
- They'd Rather Be Right (Part 2 of 4) (1954) with Freas
- They'd Rather Be Right (Part 2 of 4) [2] (1954)
- They'd Rather Be Right (Part 2 of 4) [2] (1954) with Freas
- They'd Rather Be Right (Part 2 of 4) [3] (1954)
- They'd Rather Be Right (Part 2 of 4) [3] (1954) with Freas
- They'd Rather Be Right (Part 2 of 4) [4] (1954)
- They'd Rather Be Right (Part 2 of 4) [4] (1954) with Freas
- They'd Rather Be Right (Part 3 of 4) (1954)
- They'd Rather Be Right (Part 3 of 4) (1954) with Freas
- They'd Rather Be Right (Part 3 of 4) [2] (1954)
- They'd Rather Be Right (Part 3 of 4) [2] (1954) with Freas
- They'd Rather Be Right (Part 3 of 4) [3] (1954)
- They'd Rather Be Right (Part 3 of 4) [3] (1954) with Freas
- They'd Rather Be Right (Part 3 of 4) [4] (1954)
- They'd Rather Be Right (Part 3 of 4) [4] (1954) with Freas
- They'd Rather Be Right (Part 4 of 4) (1954)
- They'd Rather Be Right (Part 4 of 4) (1954) with Freas
- They'd Rather Be Right (Part 4 of 4) [2] (1954)
- They'd Rather Be Right (Part 4 of 4) [2] (1954) with Freas
- They'd Rather Be Right (Part 4 of 4) [3] (1954)
- They'd Rather Be Right (Part 4 of 4) [3] (1954) with Freas
- They'd Rather Be Right (Part 4 of 4) [4] (1954)
- They'd Rather Be Right (Part 4 of 4) [4] (1954) with Freas
- They'd Rather Be Right [2] (1954)
- They'd Rather Be Right [3] (1954)
- They'd Rather Be Right [4] (1954)
- They've Been Working On ... (1958)
- They've Been Working On ... (1958) with Freas
- Thinking Beyond the Edge (1993)
- Thinking Beyond the Edge (2000)
- Thiotimoline to the Stars (1973)
- Thiotimoline to the Stars (1973) with Kelly Freas
- This Best of All Possible Worlds (1974)
- This Best of All Possible Worlds (1974) with Kelly Freas
- Thompson's Cat (1952)
- Thompson's Cat (1952) with Kelly Freas
- Thoracic Park (1996)
- Thoracic Park (1996) with Kelly Freas
- Those Hairy Ancestors (1954)
- Those Hairy Ancestors (1954) with Freas
- Those Hairy Ancestors [2] (1954)
- Those Hairy Ancestors [2] (1954) with Freas
- Those Hairy Ancestors [3] (1954)
- Those Hairy Ancestors [3] (1954) with Freas
- Those Impossible Autotrophic Men (1956)
- Those Impossible Autotrophic Men (1956) with Freas
- Three-Tour Man (1972)
- Three-Tour Man (1972) with Kelly Freas
- Tieline (1966)
- Tieline (1966) with Kelly Freas
- Tiger in the Stars (1977)
- Tight Squeeze (1955)
- Tight Squeeze (1955) with Freas
- Tight Squeeze [2] (1955)
- Tight Squeeze [2] (1955) with Freas
- Time and Space (1993)
- Time Crime (1955)
- Time Crime (1977)
- Time Crime (2007)
- Time Crime (2007) with Freas
- Time Crime (Part 1 of 2) (1955)
- Time Crime (Part 1 of 2) (1955) with Freas
- Time Crime (Part 1 of 2) [2] (1955)
- Time Crime (Part 1 of 2) [2] (1955) with Freas
- Time Crime (Part 1 of 2) [3] (1955)
- Time Crime (Part 1 of 2) [3] (1955) with Freas
- Time Crime (Part 1 of 2) [4] (1955)
- Time Crime (Part 1 of 2) [4] (1955) with Freas
- Time Crime (Part 1 of 2) [5] (1955)
- Time Crime (Part 1 of 2) [5] (1955) with Freas
- Time Crime (Part 1 of 2) [6] (1955)
- Time Crime (Part 1 of 2) [6] (1955) with Freas
- Time Crime (Part 2 of 2) (1955)
- Time Crime (Part 2 of 2) (1955) with Freas
- Time Crime (Part 2 of 2) [2] (1955)
- Time Crime (Part 2 of 2) [2] (1955) with Freas
- Time Crime (Part 2 of 2) [3] (1955)
- Time Crime (Part 2 of 2) [3] (1955) with Freas
- Time Crime (Part 2 of 2) [4] (1955)
- Time Crime (Part 2 of 2) [4] (1955) with Freas
- Time Crime (Part 2 of 2) [5] (1955)
- Time Crime (Part 2 of 2) [5] (1955) with Freas
- Time Crime (Part 2 of 2) [6] (1955)
- Time Crime (Part 2 of 2) [6] (1955) with Freas
- Time Crime [2] (1955)
- Time Crime [3] (1955)
- Time Crime [4] (1955)
- Time Crime [5] (1955)
- Time Crime [6] (1955)
- Time Keeper (2000)
- Time Out for Redheads (1955)
- Time Out for Redheads (1955) with Kelly Freas
- Time Techs of Kra (1954)
- To Be Continued (1956)
- To Be Continued (1956) with Freas
- To Change Their Ways (1967)
- To Change Their Ways (1967) with Kelly Freas
- To Him Who Waits (1999)
- To Him Who Waits (1999) with Kelly Freas
- Tombot! (1954)
- Tombot! (1954) with Kelly Freas
- Tomorrow Speculative Fiction, August 1993 (1993)
- Too Gloomy for Private Pushkin (1953)
- Too Gloomy for Private Pushkin (1953) with Freas
- Tools of the Trade (1956)
- Tools of the Trade (1956) with Freas
- Tops in Science Fiction, Fall 1953 (1977)
- Tops in Science Fiction, Fall 1953 [French] (1982)
- Torch (1957)
- Torch (1957) with Freas
- Touchdown, Touchdown, Rah, Rah, Rah! (1995)
- Touchdown, Touchdown, Rah, Rah, Rah! (1995) with Kelly Freas
- Touchdown, Touchdown, Rah, Rah, Rah! [2] (1995)
- Touchdown, Touchdown, Rah, Rah, Rah! [2] (1995) with Kelly Freas
- Tourist Sam (1998)
- Tournament, Part One (1959)
- Tournament, Part One (1959) with Kelly Freas
- Tower of Wings (2001)
- Training Aid (1954)
- Training Aid (1954) with Freas
- Transition (1993)
- Transition (2000)
- Trap (1969)
- Trap (1969) with Kelly Freas
- Trap [2] (1969)
- Trap [2] (1969) with Kelly Freas
- Tricon: Program Book (cover) (1966)
- Truce by Boomerang (1957)
- Truce by Boomerang (1957) with Freas
- Try a Light Touch (1991)
- Try a Light Touch (1991) with Kelly Freas
- Two Views of Frank Kelly Freas (1982)
- Two Whole Glorious Weeks (1958)
- Two Whole Glorious Weeks (1958) with Kelly Freas
- Two-Way Communication (1966)
- Two-Way Communication (1966) with Kelly Freas
- U-Turn (1966)
- U-Turn (1966) with Kelly Freas
- Unborn Tomorrow (1959)
- Unborn Tomorrow (1959) with Freas
- Unborn Tomorrow (reprint) (2007)
- Unborn Tomorrow (reprint) (2007) with Freas
- Under (2000)
- Under (2000) with Kelly Freas
- Underground (1968)
- Underground (1968) with Kelly Freas
- Unknown (1971)
- Unlimited Roquefort (1994)
- Unlimited Roquefort (1994) with Kelly Freas
- Unlimited Warfare (1974)
- Unlimited Warfare (1974) with Kelly Freas
- Unlimited Warfare [2] (1974)
- Unlimited Warfare [2] (1974) with Kelly Freas
- Unpublished Cover for Comic Magazine "Unknown Worlds of Science Fiction" #1 (2022)
- Unspecialist (1959)
- Unspecialist (1959) with Kelly Freas
- untitled (1970)
- untitled (1970) with Kelly Freas
- Untropy (1966)
- Untropy (1966) with Kelly Freas
- Unwillingly to School (1958)
- Unwillingly to School (1958) with Freas
- Unwillingly to School [2] (1958)
- Unwillingly to School [2] (1958) with Freas
- Unwillingly to School [3] (1958)
- Unwillingly to School [3] (1958) with Freas
- Unwillingly to School [4] (1958)
- Unwillingly to School [4] (1958) with Freas
- Unwillingly to School [5] (1958)
- Unwillingly to School [5] (1958) with Freas
- Uplift the Savage (1968)
- Uplift the Savage (1968) with Kelly Freas
- Vincent Price (2000)
- Vulcan's Hammer (1956)
- Vulcan's Hammer (1956) with Kelly Freas
- Waiting for the Earthquake (1985)
- Waiting for the Earthquake (1985) with Kelly Freas
- Walk Barefoot on the Glass (1974)
- Walk Barefoot on the Glass (1974) with Kelly Freas
- Wampum (1954)
- War Veteran (1955)
- War Veteran (1955) with Kelly Freas
- Warrior (1965)
- Warrior (1965) with Kelly Freas
- Waste Not, Want (1954)
- Waste Not, Want (1954) with Kelly Freas
- Watershed (1955)
- Watershed (1955) with Kelly Freas
- We Are Very Happy Here (1973)
- We Are Very Happy Here (1973) with Kelly Freas
- We Are Very Happy Here [2] (1973)
- We Are Very Happy Here [2] (1973) with Kelly Freas
- We Didn't Do Anything Wrong, Hardly (1959)
- We Didn't Do Anything Wrong, Hardly (1959) with Freas
- We Make Giant Lenses (2000)
- Weak Spot (1954)
- Weak Spot (1954) with Kelly Freas
- Weather War (1976)
- Weather War (1976) with Kelly Freas
- Weather War [2] (1976)
- Weather War [2] (1976) with Kelly Freas
- Weed Killers (1973)
- Weed Killers (1973) with Kelly Freas
- Weird Tales, January 1953 (cover) (1953) with Kelly Freas
- Weird Tales, January 1953 (cover) (1953)
- Weird Tales, November 1950 (cover) (1950) with Kelly Freas
- Weird Tales, November 1950 (cover) (1950)
- Weird Tales, November 1950 (cover) [2] (1950)
- Weird Tales, November 1951 (1977)
- Weird Tales, November 1951 (cover) (1951)
- Weird Tales, November 1951 (cover) [2] (1951)
- Western Science Is So Wonderful (1958)
- Western Science Is So Wonderful (1958) with Kelly Freas
- What Happened to Emily Goode After the Great Exhibition (1978)
- What Happened to Emily Goode After the Great Exhibition (1978) with Kelly Freas
- What Happened to Emily Goode at the Great Exhibition (1978)
- What Makes Isaac Run? (1980)
- What the Left Hand Was Doing (1960)
- What the Left Hand Was Doing (1960) with Freas
- What the Left Hand Was Doing (reprint) (2008)
- What the Left Hand Was Doing (reprint) (2008) with Freas
- What the Left Hand Was Doing [2] (1960)
- What the Left Hand Was Doing [2] (1960) with Freas
- What the Left Hand Was Doing [2] (reprint) (2008)
- What the Left Hand Was Doing [2] (reprint) (2008) with Freas
- What the Left Hand Was Doing [2] (reprint) (2008) with Kelly Freas
- What the Left Hand Was Doing [3] (1960)
- What the Left Hand Was Doing [3] (1960) with Kelly Freas
- What They're Up Against (1956)
- What They're Up Against (1956) with Freas
- What They're Up Against [2] (1956)
- What They're Up Against [2] (1956) with Freas
- Wheel of Fire (1975)
- Wheel of Fire (1975) with Kelly Freas
- Wheels (1958)
- Wheels (1958) with Freas
- When the Mountain Shook (1954)
- When the Mountain Shook (1954) with Kelly Freas
- Where the Gods Decide (1953)
- Where the Gods Decide (1953) with Kelly Freas
- Where There's Hope (1953)
- Where There's Hope (1953) with Kelly Freas
- While You Wait (1998)
- While You Wait (1998) with Kelly Freas
- Who Killed Science Fiction?: Compleat & Unexpurgated (2011)
- Who Killed Science Fiction?: Compleat & Unexpurgated (2011) with Kelly Frank Freas
- Who Needs Insurance? (1966)
- Who Needs Insurance? (1966) with Kelly Freas
- Who's Who (1983)
- Who? (1977)
- Who? (2017) with Kelly Freas
- Whosawhatsa? (1967)
- Whosawhatsa? (1967) with Kelly Freas
- Whosawhatsa? [2] (1967)
- Whosawhatsa? [2] (1967) with Kelly Freas
- Whosawhatsa? [3] (1967)
- Whosawhatsa? [3] (1967) with Kelly Freas
- Why Dolphins Don't Bite (1985)
- Why Dolphins Don't Bite (1985) with Kelly Freas
- Windy City Pulp Stories #7 (2007) with Margaret Brundage and Ed Emshwiller and Virgil Finlay and J. Allen St. John and E. M. Stevenson and Wallace Wood
-
Winkin, Blinkin and πR²?Winkin, Blinkin and pi R Squared(1968)
-
Winkin, Blinkin and πR²?Winkin, Blinkin and pi R Squared(1968) with Kelly Freas
- Wishing Season (1993)
- With All the Trappings (1956)
- With All the Trappings (1956) with Freas
- With All the Trappings [2] (1956)
- With All the Trappings [2] (1956) with Freas
- With All the Trappings [3] (1956)
- With All the Trappings [3] (1956) with Freas
- With Virgil Oddum at the East Pole (1985) with Kelly Freas
- With Virgil Oddum at the East Pole [2] (1985) with Kelly Freas
- With Virgil Odom at the East Pole (1985)
- With Virgil Odom at the East Pole [2] (1985)
- Witness (1955)
- Witness (1955) with Kelly Freas
- Wolfling (Part 1 of 3) (1969)
- Wolfling (Part 1 of 3) (1969) with Kelly Freas
- Wolfling (Part 1 of 3) [2] (1969)
- Wolfling (Part 1 of 3) [2] (1969) with Kelly Freas
- Wolfling (Part 2 of 3) (1969)
- Wolfling (Part 2 of 3) (1969) with Kelly Freas
- Wolfling (Part 2 of 3) [2] (1969)
- Wolfling (Part 2 of 3) [2] (1969) with Kelly Freas
- Wolfling (Part 3 of 3) (1969)
- Wolfling (Part 3 of 3) (1969) with Kelly Freas
- Wolfling (Part 3 of 3) [2] (1969)
- Wolfling (Part 3 of 3) [2] (1969) with Kelly Freas
- World Held Captive (Complete Novel) (1954)
- World Held Captive (Complete Novel) (1954) with Kelly Freas
- Worlds Without End (1956)
- Worlds Without End (1956) with Freas
- Yes, Virginia (1977)
- Yes, Virginia (1977) with Kelly Freas
- Your Haploid Heart (1969)
- Your Haploid Heart (1969) with Kelly Freas
- Your Haploid Heart [2] (1969)
- Your Haploid Heart [2] (1969) with Kelly Freas
- Zenya (1976)
- Zenya (1977)
- Zero Sum (1971)
- Zero Sum (1971) with Kelly Freas
- Zero Sum [2] (1971)
- Zero Sum [2] (1971) with Kelly Freas
- Discussing Science Fiction Illustration with Kelly Freas (1973) by Jay Casper
- Entrevue : Frank Kelly Freas [French] (1985) by Luc Pomerleau
- Frank Kelly Freas (2004) by uncredited
- Frank Kelly Freas: 50 Years of SF Art (2001) by Frank Kelly Freas
- Freas by Freff: The Young Turk Interviews the Older Turk (1976) by Freff
- Freas Frame (2001) by Stan Nicholls
- Interview with Kelly Freas (2010) by uncredited
- Interview with Kelly Freas (1981) by Dawn Atkins
- Interview: Kelly Freas (1980) by Jeffrey M. Elliot
- Kelly Freas: Interview (1977) by Brian M. Fraser