20403-1 TERRI WINDLING and MARK ALAN ARNOLD (eds.) Elsewhere: Tales of Fantasy (cover by George de Hoff and interior illustrations by Terri Windling; 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; 1982; 1st ACE printing and PBO; ACE fantasy)
20571 SAMUEL R. DELANY Empire Star (c.1966; nd) and The Ballad Of Beta-2 (c.1965; nd)
20571 (back cover)
20275 ALAN GARNER Elidor (c. 1965; nd)
20547-X PHYLLIS GOTLIEB Emperor, Swords, Pentacles (1985; 1st ACE printing)
20557-7 H. BEAM PIPER Empire (May 1981; 1st ACE printing)
20558-5 H. BEAM PIPER Empire (c.1981; July 1986; 5th ACE printing)
20563 FRED SABERHAGEN Empire of the East (nd)
20565 BARRINGTON J. BAYLEY Empire of Two Worlds (interior illustration by Jack Gaughan; 1972)
20656-5 KEITH LAUMER End As A Hero (1985; 1st ACE printing)
20660-3 MARION ZIMMER BRADLEY Endless Universe (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; April 1979; 2nd ACE printing)
20664 JERRY POURNELLE Endless Frontier, Volume I (nd)
20670 JUDITH MERRILL (ed.) England Swings SF: Stories of Speculative Fiction (cover by Ron Walotsky; nd; 1st ACE printing)
20724-3 POUL ANDERSON Ensign Flandry (cover by Michael Whelan; c.1966; February 1979; 1st ACE printing)
20725-1 POUL ANDERSON Ensign Flandry (c.1966; nd)
20726-X POUL ANDERSON Ensign Flandry (c.1966; nd)
20729-4 POUL ANDERSON Ensign Flandry (c.1966; nd)
20730 KEITH LAUMER Envoy To New Worlds (cover by Emsh; c.1963; 1969)
21430-4 MACK REYNOLDS Equality: In the Year 2000 (cover by Davis Meltzer; 1977; 1st ACE printing)
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; c.1946; 1964; January 1973)
21567-X EDGAR RICE BURROUGHS Escape On Venus (cover by Frank Frazetta; c.1946; 1964; 1973; nd)
21590-4 JAMES WHITE The Escape Orbit (cover by Wayne Barlowe; April 1983; 2nd ACE printing)
21599 CHRISTOPHER STASHEFF Escape Velocity (nd)
21803 EDGAR RICE BURROUGHS The Eternal Savage (original title: The Eternal Lover; cover by Roy Krenkel Jr.; c.1963; nd)
21804 EDGAR RICE BURROUGHS The Eternal Savage (c.1963; nd)
21806-7 EDGAR RICE BURROUGHS The Eternal Savage (c.1963; nd)
The Eternal Savage was originally published as ACE F-234 (1963).
21885-7 JERRY POURNELLE Exiles to Glory (c.1977; September 1980; 2nd ACE printing)
21888-1 ROBERT A. HEINLEIN Expanded Universe (nd; 2nd ACE printing)
21889-X ROBERT A. HEINLEIN Expanded Universe (November 1983; 7th ACE printing)
22215-3 JERRY POURNELLE Exiles to Glory (cover by Boris Vallejo; c. 1977; 1978)
22216 JERRY POURNELLE Exiles to Glory (c.1977; nd)
22332-X TIM HOLT Expecting Someone Taller (1990, 1st thus; fantasy mystery)
22365 ANDRE NORTON Exiles of the Stars (nd; different cover art)
22367-2 ANDRE NORTON Exiles of the Stars (cover by John Rush; nd)
22368-0 ANDRE NORTON Exiles of the Stars (cover by John Rush; 1984; nd)
22374-5 FRANK HERBERT Eye (nd)
22375 ANDRE NORTON Eye of the Monster (c.1962; nd)
22386 PHILIP K. DICK Eye In The Sky (cover by Harry Bennett; 1975)
22387 PHILIP K. DICK Eye In The Sky (c. 1975; 1980)
22388-5 MIKE CONNER Eye of the Sun (cover by Barclay Shaw; 1988; 1st ACE printing)
22500 JACK VANCE (aka JOHN HOLBROOK VANCE) The Faceless Man: Book One of the Durdane Trilogy (nd; 1st ACE printing and PBO)
22530-6 JOHN BELLAIRS The Face in the Frost (1984; 6th ACE printing; ACE Fantasy)
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)
22577-2 MARION ZIMMER BRADLEY Falcons of Narabedla (c.1964; 1979)
22640 SAMUEL R. DELANY The Fall of the Towers (cover by Kelly Freas; nd)
22641 SAMUEL R. DELANY The Fall of the Towers (cover by Kelly Freas; nd)
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; 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 B. Forbes; 1974; 1st ACE printing and PBO)
22819-4 EDMUND COOPER A Far Sunset (1977)
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)
23189-6 H. BEAM PIPER Federation (cover by Michael Whelan; February 1982; listed as "first mass market edition")
23419 H. BEAM PIPER (edited & expanded by Michael Kurland) First Cycle (1982; 1st ACE printing)
23500 GENE WOLFE The Fifth Head of Cerberus (nd)
23929-3 DENNIS SCHMIDT Twilight of the Gods: The First Name (1985)
23998 SHARIANN LEWITT First and Final Rites (nd)
24035 MACK REYNOLDS (aka DALLAS McCORD REYNOLDS) Five Way Secret Agent and Mercenary From Tomorrow (nd)
24035 (back cover)
24071-2 POUL ANDERSON Flandry of Terra (cover by Michael Whelan; nd)
24087-6 DAVID DRAKE and BILL FAWCETT (eds.) The Fleet; Counter Attack (1988; 1st ACE printing and PBO)
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")
24650 THOMAS BURNETT SWANN The Forest of Forever (1971; 1st ACE printing; ACE fantasy)
24713-X GORDON R. DICKSON The Forever Man (cover by James Gurney; 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)
24892-6 H. BEAM PIPER Four-Day Planet and Lone Star Planet.(nd)
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)
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)
25504-3 A. BERTRAM CHANDLER Frontier of the Dark (cover by Attila Hejja; 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; nd)
26181-7 WILLIAM TUNING Fuzzy Bones (cover by Michael Whelan; 1981; 1st ACE printing)
26187-6 H. BEAM PIPER Fuzzy Sapiens (original title: The Other Human Race; nd)
26190 H. BEAM PIPER Fuzzy Sapiens (original title: The Other Human Race; cover by Michael Whelan; June 1976; 1st ACE printing)
26191-4 H. BEAM PIPER Fuzzy Sapiens (original title: The Other Human Race; cover by Michael Whelan; c.1976; 2nd ACE printing)
26192-X H. BEAM PIPER Fuzzy Sapiens (original title: The Other Human Race; cover by Michael Whelan; c.1976; nd)
26194-0 H. BEAM PIPER The Fuzzy Papers (cover by Michael Whelan; nd)
26194-9 H. BEAM PIPER The Fuzzy Papers (cover by Michael Whelan; nd)
26196-5 H. BEAM PIPER Fuzzy Sapiens (cover by Michael Whelan; c. 1976; nd)
27226 ANDRE NORTON Galactic Derelict (c.1964; nd)
27228 ANDRE NORTON Galactic Derelict (c.1964; nd; same cover art as ACE 27226)
27229 ANDRE NORTON Galactic Derelict (c.1964; 1978)
27232 JACK VANCE (aka JOHN HOLBROOK VANCE) Galactic Effectuator (cover by David B. Mattingly; 1981; listed as "First Paperback Publication")
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 (August 1976; 1st ACE printing)
27242-8 KEVIN RANDLE The Galactic Silver Star (1990)
27280-0 KEITH LAUMER The Galaxy Builder (cover by John Ennis; 1984; 1st ACE printing)
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 (1972)
27346 PHILIP K. DICK and RAY NELSON The Ganymede Takeover (cover by Vincent DiFate; 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; August 1977; 1979; 3rd ACE printing)
27389 PHILIP JOSE FARMER The Gates of Creation (cover by Boris Vallejo; c.1966; 1977; 1979; February 1982; 4th ACE prinitng)
27390-4 PHILIP JOSE FARMER The Gates of Creation (c.1966; 1977; 1979; 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 Karel Thole; c.1970; 1978; 2nd ACE printing)
28702-6 JAMES P. BLAYLOCK The Stone Giant (cover by Darrell Sweet; 1989)
28860 RON GOULART The Fire-Eater (1970; 1st ACE printing)
29400 L. SPRAGUE de CAMP The Glory That Was (c.1952, 1979)
29401-4 ROBERT A. HEINLEIN Glory Road (nd; probably 3rd ACE printing)
29467-7 FRANK HERBERT God Emperor of Dune (nd; 8th ACE printing)
29525 ROBERT E. HOWARD The Gods of Bal-Sagoth (nd; 1st ACE printing)
29752-9 JESSICA AMANDA SALMONSON The Golden Naginata (nd; ACE fantasy)
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