- Series: Letters: Robert Silverberg Series Record # 64692
- Letters: Robert Silverberg
- Letter (A. Merritt's Fantasy Magazine, February 1950) (1950) [ES] by Robert Silverberg
- Letter (Super Science Stories, March 1950) (1950) [ES] by Robert Silverberg
- Letter (Fantastic Adventures, April 1950) (1950) [ES] by Robert Silverberg
- Letter (Amazing Stories, April 1950) (1950) [ES] by Robert Silverberg
- Letter (Startling Stories, May 1950): Jambalaya (1950) [ES] by Robert Silverberg
- Letter (Fantastic Adventures, June 1950) (1950) [ES] by Robert Silverberg [only as by Bob Silverberg]
- Letter (Fantastic Novels Magazine, July 1950) (1950) [ES] by Robert Silverberg
- Letter (Startling Stories, July 1950): No Letter? (1950) [ES] by Robert Silverberg [only as by Bob Silverberg]
- Letter (Fantastic Adventures, July 1950) (1950) [ES] by Robert Silverberg [only as by Bob Silverberg]
- Letter (Famous Fantastic Mysteries, August 1950): Beynon Enjoyable (1950) [ES] by Robert Silverberg [only as by Bob Silverberg]
- Letter (Fantastic Novels Magazine, September 1950) (1950) [ES] by Robert Silverberg [only as by Bob Silverberg]
- Letter (Startling Stories, September 1950): Best Overall (1950) [ES] by Robert Silverberg
- Letter (Fantastic Story Quarterly, Spring 1951) (1951) [ES] by Robert Silverberg [only as by Bob Silverberg]
- Letter (Fantastic Novels Magazine, April 1951): Successful Fanzine (1951) [ES] by Robert Silverberg [only as by Bob Silverberg]
- Letter (Startling Stories, May 1951) (1951) [ES] by Robert Silverberg [only as by Bob Silverberg]
- Letter (Thrilling Wonder Stories, June 1951) (1951) [ES] by Robert Silverberg [only as by Bob Silverberg]
- Letter (Amazing Stories, June 1951) (1951) [ES] by Robert Silverberg [only as by Bob Silverberg]
- Letter (Fantastic Adventures, August 1951): Time to Retire, He Says (1951) [ES] by Robert Silverberg [only as by Bob Silverberg]
- Letter (Planet Stories, September 1951) Tsk (1951) [ES] by Robert Silverberg [only as by Bob Silverberg]
- Letter (Famous Fantastic Mysteries, October 1951): Fanzine is Expanding (1951) [ES] by Robert Silverberg [only as by Bob Silverberg]
- Letter to Psychotic, December 1953 (1953) [ES] by Robert Silverberg [only as by Bob Silverberg]
- Letter to Psychotic, August 1954 (1954) [ES] by Robert Silverberg [only as by Bob Silverberg]
- Letter (Science Fiction Stories, January 1956) (1956) [ES] by Robert Silverberg [only as by Bob Silverberg]
- Letter (Science-Fiction Times #282) (1957) [ES] by Robert Silverberg [only as by Bob Silverberg]
- Letter (Riverside Quarterly, November 1966) (1966) [ES] by Robert Silverberg
- Letter: On Disassembling Verbs (1967) [ES] by Robert Silverberg
- Letter (Famous Science Fiction, Summer 1968) (1968) [ES] by Robert Silverberg
- Letter to Psychotic, September 1968 (1968) [ES] by Robert Silverberg [only as by Bob Silverberg]
- Letter (SF Commentary 5) (1969) [ES] by Robert Silverberg
- Letter (Granfalloon #7) (1969) [ES] by Robert Silverberg [only as by Bob Silverberg]
- Letter (Locus #39) (1969) [ES] by Robert Silverberg
- Letter to Science Fiction Review, December 1969 (1969) [ES] by Robert Silverberg
- Letter (Science Fiction Review, June 1970) (1970) [ES] by Robert Silverberg [only as by Bob Silverberg]
- Letter (SF Commentary 14) (1970) [ES] by Robert Silverberg
- Letter (Science Fiction Review, August 1970) (1970) [ES] by Robert Silverberg
- Letter (SF Commentary 23) (1971) [ES] by Robert Silverberg
- Letter (Speculation 33) (1973) [ES] by Robert Silverberg
- Letter (The Alien Critic #6) (1973) [ES] by Robert Silverberg [only as by Bob Silverberg]
- Letter (Algol, Fall 1976-Winter 1977) (1976) [ES] by Robert Silverberg
- Letter to The Bulletin of the Science Fiction Writers of America, March 1977 (1977) [ES] by Robert Silverberg
- Letter (Starship, Summer 1979) (1979) [ES] by Robert Silverberg
- Letter (Starship, Fall 1979) (1979) [ES] by Robert Silverberg
- Letter (Locus #237) (1980) [ES] by Robert Silverberg
- Letter (Starship, Summer-Fall 1981) (1981) [ES] by Robert Silverberg
- Letter (The Patchin Review, Number Two) (1981) [ES] by Robert Silverberg
- Letter (Orbit 11) (1981) [ES] by Robert Silverberg
- Letter (Starship, Winter 1983-84) (1983) [ES] by Robert Silverberg
- Letter (Locus #268) (1983) [ES] by Robert Silverberg
- Letter to Gregg Rickman (February 4, 1984; extract) (1984) [ES] by Robert Silverberg
- Letter to The SFWA Forum # 96, July-August 1986 (1986) [ES] by Robert Silverberg
- Letter (Locus #327) (1988) [ES] by Robert Silverberg
- Letter (Locus #329) (1988) [ES] by Robert Silverberg
- Letter (Science Fiction Eye #6) (1990) [ES] by Robert Silverberg
- Letter to Brian W. Aldiss (1990) [ES] by Robert Silverberg
- Letter (Locus #358) (1990) [ES] by Robert Silverberg
- Letter (Locus #368) (1991) [ES] by Robert Silverberg
- Letter (Locus #375) (1992) [ES] by Robert Silverberg
- Letters (Asimov's, April 1995) (1995) [ES] by Robert Silverberg and Sheila Williams
- Letter (Locus #432) (1997) [ES] by Robert Silverberg
- Letters (Asimov's, February 1997) (1997) [ES] by Robert Silverberg
- Letter (Locus #452) (1998) [ES] by Robert Silverberg
- Letter (Locus #472) (2000) [ES] by Robert Silverberg
- Letter (Locus #486) (2001) [ES] by Robert Silverberg
- Letter (Ansible 173) (2001) [ES] by Robert Silverberg
-
Letter (el, 2002-12-00) (2002) [ES]
by
Robert Silverberg
only appeared as:
- Variant: Letter (el, December 2002) (2002) [as by Bob Silverberg]
- Letter (Locus #620) (2012) [ES] by Robert Silverberg
- Letter (Galaxy's Edge, Issue 3: July 2013) (2013) [ES] by Robert Silverberg
- Letter (Ansible 327) (2014) [ES] by Robert Silverberg