20403-1 TERRI WINDLING and MARK ALAN ARNOLD (eds.) Elsewhere: Tales of Fantasy (cover by George de Hoff and interior illustrations by Terri Windling; September 1981; 1st ACE printing and PBO; ACE fantasy)
20404-X TERRI WINDLING and MARK ALAN ARNOLD (editors) Elsewhere: Tales of Fantasy vol. II (cover by George de Hoff and interior drawings by Terri Windling; November 1982; 1st ACE printing and PBO; ACE fantasy)
20405-8 TERRI WINDLING and MARK ALAN ARNOLD (eds.) Elsewhere, Tales of Fantasy, Vol. III (cover by George de Hoff; April 1984; 1st ACE printing and PBO; ACE fantasy)
20275 ALAN GARNER Elidor (c. 1965; nd)
20547-X PHYLLIS GOTLIEB Emperor, Swords, Pentacles (April 1982; 1st ACE printing)
20557-7 H. BEAM PIPER Empire (cover by Michael Whelan; May 1981; 1st ACE printing)
20558-5 H. BEAM PIPER Empire (cover by Michael Whelan; c.1981; July 1986; 5th ACE printing)
20562-3 FRED SABERHAGEN Empire of the East (cover by Enric; October 1979; 1st ACE trade market printing)
20563-1 FRED SABERHAGEN Empire of the East (cover by Enric; July 1980; 2nd ACE printing)
20565 BARRINGTON J. BAYLEY Empire of Two Worlds (cover by John Schoenherr and interior illustration by Jack Gaughan; c.1972; 1st ACE printing and PBO)
20571 SAMUEL R. DELANY Empire Star (c.1966; nd) and The Ballad Of Beta-2 (c.1965; nd)
20571 (back cover)
20656-5 KEITH LAUMER End As A Hero (cover by Les Edwards; August 1985; 1st ACE printing)
20660-3 MARION ZIMMER BRADLEY Endless Voyage (wrap-around cover by Lombardo; 1975; 1st ACE printing and PBO)
20660-3 (back cover)
20661-1 MARION ZIMMER BRADLEY Endless Universe (cover by Attila Hejja; c.1975; April 1979; 2nd ACE printing)
20662-X MARION ZIMMER BRADLEY Endless Universe (cover by Attila Hejja; c.1975; 1979; probably 1981)
20663-9 MARION ZIMMER BRADLEY Endless Universe (cover by Attila Hejja; c.1975; 1979; 1981; August 1982)
20664-6 JERRY POURNELLE (ed.) The Endless Frontier (cover by Vincent Di Fate; November 1979; 1st ACE printing)
Short story collection and essays - contents available at URL: http://www.isfdb.org/cgi-bin/pl.cgi?39218
20666-2 JERRY POURNELLE with JOHN F. CARR (ed.) The Endless Frontier Vol. II (cover by Vincent Di Fate; January 1982)
20667-0 JERRY POURNELLE (ed.) The Endless Frontier Vol. I (cover by Vincent Di Fate; c.1979; January 1982; 2nd ACE printing)
20669-7 JERRY POURNELLE (ed.) The Endless Frontier (cover by Vincent Di Fate; c.1979; 1982; June 1985; 3rd ACE printing)
20670 JUDITH MERRILL (ed.) England Swings SF: Stories of Speculative Fiction (cover by Ron Walotsky; nd; 1st ACE printing)
20671-9 JERRY POURNELLE with JOHN F. CARR (ed.) The Endless Frontier Vol. II (cover by Vincent Di Fate; c.1982; September 1985)
20672-7 BARRY B. LONGYEAR and DAVID GERROLD Enemy Mine (photo cover; 1985; movie tie-in)
20724-3 POUL ANDERSON Ensign Flandry (cover by Michael Whelan; c.1966; February 1979; 1st ACE printing)
20725-1 POUL ANDERSON Ensign Flandry (cover by Michael Whelan; c.1966; 1979; 1980; 4th ACE printing)
20726-X POUL ANDERSON Ensign Flandry (cover by Michael Whelan; c.1966; 1979; 1980; November 1982; 6th ACE printing)
20729-4 POUL ANDERSON Ensign Flandry (cover by Michael Whelan; c.1966; 1979; 1980; 1982; January 1985; 8th printing)
20730 KEITH LAUMER Envoy To New Worlds (cover by Emsh; c.1963; March 1969)
20731 KEITH LAUMER Envoy To New Worlds (c.1963; 1969; November 1973)
Note that although the volume is listed as "2nd ACE printing," this ignores the printing history of ACE 20730. Different cover art. Thank you Bill for tracking this down.
21430-4 MACK REYNOLDS Equality: In the Year 2000 (cover by Davis Meltzer; May 1977; 1st ACE printing and PBO)
21526-2 CHARLES SHEFFIELD Eramus Magister (1982; 1st ACE printing and PBO; ACE historical fantasy)
21561 EDGAR RICE BURROUGHS Escape on Venus (cover and title page illustration by Roy Krenkel, Jr.; c.1946; 1964; nd; 3rd ACE printing; listed as "complete and unabridged")
21562 EDGAR RICE BURROUGHS Escape on Venus (cover by Frank Frazetta and title page illustration by Roy Krenkel Jr.; c.1946; 1964; January 1974)
21563 EDGAR RICE BURROUGHS Escape On Venus (cover by Frank Frazetta; c.1946; 1964; 1974; 1975/1976?; 4th ACE printing)
Note: either late 1975 or early 1976.
21564 EDGAR RICE BURROUGHS Escape On Venus (cover by Frank Frazetta; c.1946; 1964; 1974; 1975/1976; January 1977; 5th ACE printing)
21565-3 EDGAR RICE BURROUGHS Escape On Venus (cover by Frank Frazetta; c.1946; 1964; 1974; 1975/1976; 1977; June 1979; 6th ACE printing)
21566-1 EDGAR RICE BURROUGHS Escape On Venus (cover by Frank Frazetta; c.1946; 1964; 1974; 1975/1976; 1977; 1979; October 1981; 7th ACE printing)
This ACE Letter-Number series was printed twice (October 1981 and September 1982) with the same price and cover art.
21567-X EDGAR RICE BURROUGHS Escape On Venus (cover by Frank Frazetta; c.1946; 1964; 1974; 1975/1976; 1977; 1979; 1981; 1982; November 1984; 10th ACE printing)
21590-4 JAMES WHITE The Escape Orbit (cover by Wayne Barlowe; April 1983; 2nd ACE printing)
21599-8 CHRISTOPHER STASHEFF Escape Velocity (cover by Stephen Hickman; October 1983; 1st ACE printing)
21600-5 CHRISTOPHER STASHEFF Escape Velocity (cover by Stephen Hickman; c.1983; June 1984; 3rd ACE printing)
21600-5 (back cover)
21601-3 CHRISTOPHER STASHEFF Escape Velocity (cover by Stephen Hickman; c.1983; 1984; October 1984; 4th ACE printing)
21601-3 (back cover)
21602-1 CHRISTOPHER STASHEFF Escape Velocity (cover by Stephen Hickman; c.1983; 1984; April 1986; 5th ACE printing)
21603-X CHRISTOPHER STASHEFF Escape Velocity (cover by Stephen Hickman; c.1983; 1984; 1986; nd; 6th ACE printing)
This ACE Letter-Number series was then used for the 7th through 9th printing.
21803 EDGAR RICE BURROUGHS The Eternal Savage (original title: The Eternal Lover; cover by Roy Krenkel Jr.; c.1914; 1963; 1972; nd)
21804 EDGAR RICE BURROUGHS The Eternal Savage (original title: The Eternal Lover; cover by Roy Krenkel Jr.; c.1914; 1963; 1972; nd)
21805-9 EDGAR RICE BURROUGHS The Eternal Savage (original title: The Eternal Lover; cover by Roy Krenkel Jr.; c.1914; 1963; 1972; 1978)
21806-7 EDGAR RICE BURROUGHS The Eternal Savage (original title: The Eternal Lover; cover by Roy Krenkel Jr.; c.1914; 1963; 1972; 1978; nd)
The Eternal Savage was originally published as ACE F-234 (1963).
21883-0 ROBERT A. HEINLEIN Expanded Universe (c.1980; February 1981; 1st trade paperback ACE printing)
21885-7 JERRY POURNELLE Exiles to Glory (cover by David Plourde; c.1977; September 1980; 3rd ACE printing)
21888-1 ROBERT A. HEINLEIN Expanded Universe (c.1980; 1981; 2nd ACE printing)
21889-X ROBERT A. HEINLEIN Expanded Universe (c.1980; 1981; November 1983; 7th ACE printing)
21891-1 ROBERT A. HEINLEIN Expanded Universe (c.1980; 1981; 1983; March 1986; 8th ACE printing)
22215-3 JERRY POURNELLE Exiles to Glory (cover by Boris Vallejo; c. 1977; July 1978; 1st ACE printing)
22216-1 JERRY POURNELLE Exiles to Glory (cover by Boris Vallejo; c. 1977; 1978; 2nd ACE printing)
22217-X JERRY POURNELLE Exiles to Glory (cover by Boris Vallejo; c. 1977; 1978; December 1983; 4th ACE printing)
22218-8 JERRY POURNELLE Exiles to Glory (cover by Boris Vallejo; c. 1977; 1978; 1983; November 1986; 5th ACE printing)
22332-X TIM HOLT Expecting Someone Taller (September 1990, 1st ACE printing; ACE fantasy mystery)
22336-2 KARA DALKEY Euryale (cover by Mel Odom; November 1988; 1st ACE printing and PBO; ACE Fantasy)
22336-2 (back cover)
22365 ANDRE NORTON Exiles of the Stars (July 1972; 1st ACE printing; different cover art - possibly Dean Ellis?)
22366 ANDRE NORTON Exiles of the Stars (February 1975; 2nd ACE printing)
22367-2 ANDRE NORTON Exiles of the Stars (cover by John Rush; June 1979; 3rd ACE printing)
22368-0 ANDRE NORTON Exiles of the Stars (cover by John Rush; 1979; 1984)
22374-5 FRANK HERBERT Eye (cover and interior illustrations by Jim Burns; November 1987; 1st ACE printing)
22375 ANDRE NORTON Eye of the Monster (c.1962; March 1975)
22376-1 ANDRE NORTON Eye of the Monster (c.1962; 1975; February 1980; 4th ACE printing)
22377-X ANDRE NORTON Eye of the Monster (cover by Ken Barr; c.1962; 1975; 1980; January 1984; 5th ACE printing)
22378-8 ANDRE NORTON Eye of the Monster (cover by Ken Barr; c.1962; 1975; 1980; 1984; December 1986; 6th ACE printing)
22386 PHILIP K. DICK Eye In The Sky (cover by J. H. Breslow; c.1957; March 1975)
22387-7 PHILIP K. DICK Eye In The Sky (cover by J. H. Breslow; c.1957; 1975; June 1977)
22388-5 MIKE CONNER Eye of the Sun (cover by Barclay Shaw; 1988; 1st ACE printing)
22500-4 JACK VANCE (aka JOHN HOLBROOK VANCE) The Faceless Man (original title: The Anome; cover by Davis Meltzer; June 1978; 1st ACE printing and PBO)
22530-6 JOHN BELLAIRS The Face in the Frost (1984; 6th ACE printing; ACE Fantasy)
22549-7 ROBERT LYNN ASPRIN and LYNN ABBEY (eds.) The Face of Chaos (cover by Walter Velez; October 1983; 1st ACE printing and PBO)
22551-9 ROBERT J. SAWYER Far-Seer (cover by Tom Kidd; June 1992; 1st ACE printing)
22555-1 JACK VANCE (aka JOHN HOLBROOK VANCE) The Faceless Man: Book One of the Durdane Trilogy (cover by Peter Dana; May 1987; 2nd ACE printing)
22569-1 EMMA BULL Falcon (cover by Kirk Reinert; October 1989; 1st ACE printing)
This ACE Letter-Number series was reprinted with the price and cover art, except the number line ends in ‘2’ [likely 1990].
22577-2 MARION ZIMMER BRADLEY Falcons of Narabedla (cover by Bob Adragna; c.1964; March 1979)
22640 SAMUEL R. DELANY The Fall of the Towers (cover by Kelly Freas; c.1966; nd)
22641 SAMUEL R. DELANY The Fall of the Towers (cover by Kelly Freas - different art; c.1966; nd)
22640 SAMUEL R. DELANY The Fall of the Towers (cover by Kelly Freas; c.1966; nd)
22641 SAMUEL R. DELANY The Fall of the Towers (cover by Kelly Freas; c.1966; nd)
22641 (back cover)
22642 SAMUEL R. DELANY The Fall of the Towers (cover by Kelly Freas; c.1966; April 1975)
22642 (back cover)
22643-4 SAMUEL R. DELANY Out of the Dead City (original title: Captives of the Flame; c.1963; nd)
22690 BARRY N. MALZBERG The Falling Astronauts (cover by Davis Metzler; December 1971)
22744-9 GRAHAM MASTERTON Famine (1981; 1st ACE printing; ACE Charter edition)
22799-6 GORDON R. DICKSON The Far Call (February 1983; 1st ACE printing)
22811 A. E. VAN VOGT The Far-Out Worlds of Van Vogt (c.1968; nd)
22812 A. E. VAN VOGT The Worlds of A. E. Van Vogt (cover by Bart Forbes; January 1974; 1st ACE printing and PBO)
22813 A. E. VAN VOGT The Worlds of A. E. Van Vogt (cover by Bart Forbes; October or November 1974; 2nd ACE printing)
22819-4 EDMUND COOPER A Far Sunset (cover by David Bergen; December 1977; 1st ACE printing)
22830 D. G. COMPTON Farewell, Earth's Bliss (cover by Karel Thole; revised U. S. edition copyright 1971)
22876-3 MELINDA M. SNODGRASS Final Circuit (cover by Don Dixon; 1988)
22925 WALTER KENDRICK A Fire In The Sky (1978; 1st ACE printing and PBO; movie tie-in)
23188-8 H. BEAM PIPER Federation (cover by Michael Whelan; February 1981; listed as "first ACE trade edition")
23189-6 H. BEAM PIPER Federation (cover by Michael Whelan; c.1981; February 1982; listed as "first mass market edition")
23190-X H. BEAM PIPER Federation (cover by Michael Whelan; c.1981; 1982; December 1983; 3rd ACE printing)
23191-8 H. BEAM PIPER Federation (cover by Michael Whelan; c.1981; 1983; 1983; nd; 4th ACE printing)
23194-2 ANNE McCAFFREY and JODY LYNN NYE Crisis on Doona (cover by Michael Herring; March 1992; 1st ACE printing)
23500 GENE WOLFE The Fifth Head of Cerberus (July 1976; 1st ACE printing)
23501-8 GENE WOLFE The Fifth Head of Cerberus (cover by Martin Rigo; September 1981; 2nd ACE printing)
23510-7 KEVIN RANDLE and ROBERT CORNETT The Aldebaran Campaign (cover by Miro; December 1988; 1st ACE printing and PBO)
23516-6 RUDY RUCKER The 57th Franz Kafka (January 1983; 1st ACE printing and PBO)
23584-0 CHRIS CLAREMONT First Flight (cover by Luis Royo; December 1987; 1st ACE printing)
23776-2 GORDON R. DICKSON The Final Encyclopedia (cover by Michael Whelan; c.1984; October 1985; 1st ACE printing)
23777-0 GORDON R. DICKSON The Final Encyclopedia (cover by Michael Whelan; c.1984; 1985; nd; 2nd ACE printing)
23860-2 GEO. W. PROCTOR Timesearch (original title: Fire At The Center)
23919-6 H. BEAM PIPER (edited & expanded by Michael Kurland) First Cycle (January 1982; 1st ACE printing)
23929-3 DENNIS SCHMIDT Twilight of the Gods: The First Name (cover by Romas Kukalis; February 1985; ACE fantasy)
23998-6 SHARIANN LEWITT First and Final Rites (cover by Barclay Shaw; September 1984)
24035 MACK REYNOLDS (aka DALLAS McCORD REYNOLDS) Five Way Secret Agent and Mercenary From Tomorrow (November 1975)
24035 (back cover)
24071-2 POUL ANDERSON Flandry of Terra (cover by Michael Whelan; c.1965; July 1979; 1st ACE printing)
24072-0 POUL ANDERSON Flandry of Terra (cover by Michael Whelan; c.1965; 1979; nd (probably 1981); 4th ACE printing)
24073-9 POUL ANDERSON Flandry of Terra (cover by Michael Whelan; c.1965; 1979; 1982; April 1983; 5th and 6th ACE printing)
24074-7 POUL ANDERSON Flandry of Terra (cover by Michael Whelan; c.1965; 1979; 1982; 1983; February 1985; 7th ACE printing)
24086-0 DAVID DRAKE and BILL FAWCETT (eds.) The Fleet (May 1988; 1st ACE printing and PBO)
24087-9 DAVID DRAKE and BILL FAWCETT (eds.) The Fleet: Counterattack (December 1988; 1st ACE printing and PBO)
24090-9 DAVID DRAKE and BILL FAWCETT (eds.) The Fleet: Sworn Allies (cover by Jim Gurney; March 1990; 1st ACE printing and PBO)
24092-5 SHERI S. TEPPER The Flight of Mavin Manyshaped (June 1985; 1st ACE printing; ACE fantasy)
24093-3 DAVID DRAKE and BILL FAWCETT (eds.) The Fleet: Total War (cover by Jim Gurney; September 1990; 1st ACE printing and PBO)
24103-4 DAVID DRAKE and BILL FAWCETT (eds.) The Fleet: Breakthrough (cover by Jim Gurney; 1989; 1st ACE printing and PBO)
24105-0 DAVID DRAKE and BILL FAWCETT (eds.) The Fleet: Breakthrough (cover by Jim Gurney; c.1989; May 1989; 2nd ACE printing)
24590 R. A. LAFFERTY Fourth Mansions (cover by Leo and Diane Dillon; 1969; 1st ACE printing and PBO)
24620 ANDRE NORTON Forerunner Foray (wrap-around cover art by Charles Mikolaycak; c.1973; February 1975; 1st ACE printing; listed as "first paperback publication")
24622-2 ANDRE NORTON Forerunner Foray (cover by Wojtek Siudmak; c.1973; 1975; December 1980; 2nd ACE printing)
24623-0 ANDRE NORTON Forerunner Foray (cover by Wojtek Siudmak; c.1973; 1975; 1980; July 1982; 3rd ACE printing)
24650 THOMAS BURNETT SWANN The Forest of Forever (1971; 1st ACE printing; ACE fantasy)
24712-1 GORDON R. DICKSON The Forever Man (wrap around cover by James Gurney; September 1986; 1st ACE printing)
24713-X GORDON R. DICKSON The Forever Man (cover by James Gurney; c.1986; nd; 3rd ACE printing)
24800 JULES VERNE For the Flag (c.1961)
24806-3 DAVID C. SMITH and RICHARD TIERNEY For the Witch of the Mists (cover by Ezra Tucker; March 1981; 1st ACE printing)
24884-5 ROBERT J. SAWYER Fossil Hunter (cover by Bob Eggleton; May 1993; 1st ACE printing)
24886-7 MICHAEL MOORCOCK The Fortress of the Pearl (nd; ACE fantasy)
24890-X H. BEAM PIPER Four-Day Planet and Lone Star Planet (cover by Michael Whelan; April 1979; 1st ACE printing)
24892-6 H. BEAM PIPER Four-Day Planet and Lone Star Planet (cover by Michael Whelan; c.1979; September 1984; 2nd ACE printing)
24901 ROGER ZELAZNY Four For Tomorrow (c.1967; February 1973; 2nd ACE printing)
24903 ROGER ZELAZNY Four For Tomorrow (cover by Garland; c.1967; 1973; nd)
24904-3 ROGER ZELAZNY Four For Tomorrow (cover by Garland; c.1967; 1973;1981)
24905-1 ROGER ZELAZNY Four For Tomorrow (cover by Garland; c.1967; 1973; 1981; February 1982)
24905-1 (back cover)
25130 FORREST J. ACKERMAN (ed.) Boris Karloff: The Frankenscience Monster (cover by Verne Tossey; 1969; 1st thus; biography)
25460 MARY STATON From the Legend of Biel (1975; 1st ACE printing and PBO)
25461 MARY STATON From the Legend of Biel (c.1975; nd; 2nd ACE printing)
25504-3 A. BERTRAM CHANDLER Frontier of the Dark (cover by Attila Hejja; January 1984; 1st ACE printing and PBO)
25950 SUZETTE HADEN ELGIN Furthest (cover by Leo and Diane Dillon; 1971; 1st ACE printing and PBO)
25970-7 REGINALD BRETNOR (ed.) The Future At War, Vol. 1: Thor's Hammer (cover by Vincent di Fate; August 1979; 1st ACE printing)
25971-5 REGINALD BRETNOR (ed.) The Future At War, Vol. 2: The Spear of Mars (cover by Vincent di Fate; March 1980; 1st ACE printing)
25972-3 REGINALD BRETNOR (ed.) The Future At War, Vol. 3: Orion's Sword (cover by Vincent di Fate; 1980; 1st ACE printing )
25980 A. E. VAN VOGT Future Glitter (cover by Bart Forbes; October 1973; 1st ACE printing)
26176-0 H. BEAM PIPER Fuzzies and Other People (cover by Michael Whelan; August 1984; 1st ACE printing and PBO)
26177-9 H. BEAM PIPER Fuzzies and Other People (cover by Michael Whelan; c.1984; 1985; November 1986; 4th ACE printing)
26181-7 WILLIAM TUNING Fuzzy Bones (cover by Michael Whelan; 1981; 1st ACE printing)
26188-4 H. BEAM PIPER Fuzzy Sapiens (original title: The Other Human Race; c.1976; 1978; 1982; June 1983)
26190 BEAM PIPER Fuzzy Sapiens (original title: The Other Human Race; cover by Michael Whelan; June 1976; 1st ACE printing)
26191 H. BEAM PIPER Fuzzy Sapiens (original title: The Other Human Race; cover by Michael Whelan; August 1976; 2nd ACE printing)
26192-X H. BEAM PIPER Fuzzy Sapiens (original title: The Other Human Race; cover by Michael Whelan; c.1976; May 1978; 4th ACE printing)
26193-0 H. BEAM PIPER The Fuzzy Papers (cover by Michael Whelan; September 1980; 1st ACE printing)
26194-9 H. BEAM PIPER The Fuzzy Papers (cover by Michael Whelan; c.1980; August 1982; 2nd ACE printing)
26196-5 H. BEAM PIPER Fuzzy Sapiens (cover by Michael Whelan; c.1976; 1978; 1982; September 1985)
27226 ANDRE NORTON Galactic Derelict (cover by Davis Meltzer; c.1964; April 1972; 3rd ACE printing)
27227 ANDRE NORTON Galactic Derelict (cover by Davis Meltzer; c.1964; 1972; nd - probably 1974)
27228 ANDRE NORTON Galactic Derelict (cover by Davis Meltzer; c.1964; 1972; nd - probably 1975)
27229-0 ANDRE NORTON Galactic Derelict (cover by Davis Meltzer; c.1964; 1972; July 1978; 8th ACE printing)
27231-2 ANDRE NORTON Galactic Derelict (cover by Walter Velez; c.1964; 1972; August 1982)
27232-0 JACK VANCE (aka JOHN HOLBROOK VANCE) Galactic Effectuator (cover by David B. Mattingly; 1981; listed as "First Paperback Publication")
27233-9 ANDRE NORTON Galactic Derelict (cover by Walter Velez; c.1964; 1972; 1982; October 1984)
27234-7 ANDRE NORTON Galactic Derelict (cover by Walter Velez; c.1964; 1972; 1982; 1984; May 1987)
27236-3 WALT & LEIGH RICHMOND Gallagher's Glacier (cover by John Rush, July 1979; 2nd ACE printing)
27238-X KEVIN RANDLE Galactic MI (cover by Kevin Murphy; 1993; 1st ACE printing and PBO)
27240 MACK REYNOLDS (aka DALLAS McCORD REYNOLDS) Galactic Medal of Honor (cover by Vincent Di Fate; August 1976; 1st ACE printing)
27241-X MACK REYNOLDS (aka DALLAS McCORD REYNOLDS) Galactic Medal of Honor (cover by Vincent Di Fate; c.1976; 1977/1978?; 2nd ACE printing)
27242-8 KEVIN RANDLE The Galactic Silver Star (1990)
27280-0 KEITH LAUMER The Galaxy Builder (cover by John Ennis; February 1984; 1st ACE printing and PBO)
27284-3 RICHARD A. LUPOFF Galaxy's End (cover by Ron Miller; August 1988; 1st ACE printing and PBO)
27291 EDWARD E. "DOC" SMITH The Galaxy Primes (c.1965; nd)
27296 JAMES BAEN (ed.) Galaxy: The Best of My Years (1980; 1st ACE printing)
27310 PHILIP K. DICK The Game-Players of Titan (cover by J. H. Breslow; c.1963; April 1972)
27346 PHILIP K. DICK and RAY NELSON The Ganymede Takeover (cover by Vincent DiFate; 1976; 2nd ACE printing)
27387-4 PHILIP JOSE FARMER The Gates of Creation (cover by Boris Vallejo; c.1966; August 1977)
27380-7 ANDRE NORTON The Gate of the Cat (cover by Rick Lovell; July 1988; 1st ACE printing)
27380-7 ANDRE NORTON The Gate of the Cat (cover by Rick Lovell; July 1988; 1st ACE printing)
27387-4 PHILIP JOSE FARMER The Gates of Creation (cover by Boris Vallejo; c.1966; August 1977; 2nd ACE printing)
27388-2 PHILIP JOSE FARMER The Gates of Creation (cover by Boris Vallejo; c.1966; 1977; nd - but see note below; 3rd ACE printing)
27389-0 PHILIP JOSE FARMER The Gates of Creation (cover by Boris Vallejo; c.1966; 1977; 1978; February 1981; 4th ACE prinitng)
27390-4 PHILIP JOSE FARMER The Gates of Creation (c.1966; 1977; 1978; 1982; January 1983; 5th ACE prinitng)
27905 EDMUND COOPER Gender Genocide (original title: Who Needs Men?; 1973; 1st thus)
27910 HOWARD FAST The General Zapped An Angel (cover by Karel Thole; 1970; 1st ACE printing)
27911-2 HOWARD FAST The General Zapped An Angel (cover by Boris Vallejo; c.1970; 1978; 2nd ACE printing)
28602-X FRITZ LEIBER The Ghost Light (1991; 1st ACE printing and maybe PBO)
28702-6 JAMES P. BLAYLOCK The Stone Giant (cover by Darrell Sweet; 1989)
28837-5 REGINALD BRETNOR Gilpin's Space (cover by Alan Gutierrez; June 1986)
28860 RON GOULART The Fire-Eater (cover by Robert LoGrippo; 1970; 1st ACE printing)
28988-6 HARLAN ELLISON The Glass Teat (cover by Barclay Shaw; May 1983)
29400-6 L. SPRAGUE de CAMP The Glory That Was (cover by Stephen Hickman; c.1952, July 1979; 1st ACE printing)
29401-4 ROBERT A. HEINLEIN Glory Road (c.1987; November 1988; probably 3rd ACE printing)
29430-8 CARL MILLER The Goblin Plain War (1991; 1st ACE printing; ACE fantasy)
29467-7 FRANK HERBERT God Emperor of Dune (June 1987; 1st ACE printing - by number line)
29470-7 PIERS ANTHONY God of Tarot (1987; 2nd ACE printing; ACE fantasy)
29497-9 TREVOR HOYLE The Gods Look Down (cover by Don Brautigam?; c.1978; April 1982)
29525 ROBERT E. HOWARD The Gods of Bal-Sagoth (cover by Sanjulian; 1979; 1st ACE printing and PBO)
29525 (back cover)
29532-0 BARRY SADLER Casca: God of Death (1982)
29729-3 ARDATH MAYHAR Golden Dream: A Fuzzy Odyssey (cover by Michael Whelan; October 1982; 1st ACE printing)
29752-8 JESSICA AMANDA SALMONSON The Golden Naginata (cover by Kinuko Craft; c. 1982; March 1984; ACE fantasy)
29752-8 (back cover)