Terra Leiber

Terra 400, originally uploaded by micky the pixel.

Terra Bova

Terra 443, originally uploaded by micky the pixel.

Terra Sturgeon

Terra 473, originally uploaded by micky the pixel.

1960 Ace Ed Emshwiller Brunner

The Atlantic Abomination (1960), originally uploaded by erik_mona.

1960 Fawcett Powers Budrys

Rogue Moon (1960), originally uploaded by erik_mona.

1964 Ace Alex Schomburg Cummings

The Exile of Time (1964), originally uploaded by erik_mona.

1967 Pyramid Leo & Diane Dillon Ellison

I Have No Mouth and I Must Scream (Pyramid Science Fiction X-1611) 1967 AUTHOR: Ellison, Harlan; Theodore Sturgeon (intro) ARTIST: Leo & Diane Dillon, originally uploaded by Hang Fire Books.

1953 Ballantine Joe Mugniani Bradbury

Fahrenheit 451 (Ballantine 41) 1953 AUTHOR: Ray Bradbury ARTIST: Joe Mugniani, originally uploaded by Hang Fire Books.

1966 Ballantine Niven

World of Ptavvs (Ballantine U2328) 1966 AUTHOR: Larry Niven ARTIST: (unknown), originally uploaded by Hang Fire Books.

1964 Airmont Ed Emshwiller Coblentz

Hidden World (Airmont SF6) 1964 AUTHOR: Stanton A. Coblentz ARTIST: Ed Emshwiller, originally uploaded by Hang Fire Books.

1962 Ballantine Ralph Brillhart Anderson

After Doomsday (Ballantine 579) 1962 AUTHOR: Poul Anderson ARTIST: Ralph Brillhart, originally uploaded by Hang Fire Books.

1958 Berkley

Strange Ports of Call (Berkley G-131) 1958 AUTHOR: August Derleth ARTIST: (unknown), originally uploaded by Hang Fire Books.

Ace Ed Emshwiller Nowlan

Armageddon 2419 A. D. (Ace F-188) AUTHOR: Philip Francis Nowlan ARTIST: Ed Emshwiller, originally uploaded by Hang Fire Books.

1969 Ballantine Lehr White

Aliens Among Us, The (Ballantine 01545) 1969 AUTHOR: James White ARTIST: (unknown), originally uploaded by Hang Fire Books.

1970 Ace Leo & Diane Dillon Shaw

One Million Tomorrows (Ace Science Fiction Special 62938) 1970 AUTHOR: Bob Shaw ARTIST: Leo & Diane Dillon, originally uploaded by Hang Fire Books.

1976 Vincent Di Fate Russell

Sentinels From Space - Eric Frank Russell, originally uploaded by Cadwalader Ringgold.

1962 Ace Emsh Williamson

Trial of Terra - Jack Williamson - 1st edition and only publication - cover by Emsh, originally uploaded by Cadwalader Ringgold.

1972 Ace Aldiss

Barefoot in the Head (Ace 04758) 1972 AUTHOR: Brian Aldiss ARTIST: (unknown), originally uploaded by Hang Fire Books.

Avon Haldeman

study war no more, originally uploaded by cdrummbks.

1962 Ace Williams

The Darkness Before Tomorrow (1962), originally uploaded by erik_mona.

1961 Ace Valigursky Chandler

Pulp Fiction, originally uploaded by nespodzany.

1959 Ace Leo & Diane Dillon Davidson

Island Under the Earth, The (Ace Science Fiction Special 37425) 1959 AUTHOR: Avram Davidson ARTIST: Leo & Diane Dillon, originally uploaded by Hang Fire Books.

1963 Ace Ed Emshwiller Silverberg

The Silent Invaders (1963), originally uploaded by erik_mona.

Ace Leo & Diane Dillon Sladek

Mechasm (Original Title: The Reproductive System) (Ace Science Fiction Special 71435) 1968 AUTHOR: John T. Sladek ARTIST: Leo & Diane Dillon, originally uploaded by Hang Fire Books.

1963 Ace Jack Gaughan Brunner

Space Time Juggler - John Brunner - Ace Double edition - cover by Gaughan, originally uploaded by Cadwalader Ringgold.

1963 Ace Valigursky Brunner

Astronauts Must Not Land - John Brunner - Ace Double Edition - cover by Valigursky, originally uploaded by Cadwalader Ringgold.

1972 Avon Spinrad

THE IRON DREAM ( NORMAN SPINRAD), originally uploaded by martinprine.

Avon Everett Raymond Kintsler Lewis

Out of the Silent Planet (Avon T-127) 1949 AUTHOR: C. S. Lewis ARTIST: Everett Raymond Kintsler, originally uploaded by Hang Fire Books.

1975 Ballantine Don R. Smith Tiptree

Warm Worlds and Others (Ballantine 24380) 1975 AUTHOR: James Tiptree, Jr. ARTIST: Don R. Smith, originally uploaded by Hang Fire Books.

1969 Avon Alex Gnidziejko Spinrad

Bug Jack Barron by Norman Spinrad, originally uploaded by Jim Linwood.

1969 Panther Brian Edwards Anderson

Panther Science Fiction 586 02871 4, originally uploaded by scatterkeir.

1968 Panther Bob Haberfield Anderson

Panther Science Fiction 026312, originally uploaded by scatterkeir.

1961 Ace Schoenherr Brunner

Meeting at Infinity - John Brunner, originally uploaded by Cadwalader Ringgold.

1968 Panther Anderson

Panther Science Fiction 025537, originally uploaded by scatterkeir.

Bradbury

06 Book cover, Poland (bradbury, fahrenheit 451), originally uploaded by A Journey Round My Skull.

Ace Verne

Off of a Comet - Jules Vernes, originally uploaded by Cadwalader Ringgold.

1967 Ace Gaughan Knight

Turning On - Damon Knight, originally uploaded by Cadwalader Ringgold.

1958 Digit Emshwiller Aldiss

Non-Stop, originally uploaded by Fin Fahey.

1964 Berkley Lehr Campbell

Astounding Tales of Space and Time - John W. Campbell editor, originally uploaded by Cadwalader Ringgold.

1956 Pyramid Hunter Sturgeon

Sturgeon Cover, originally uploaded by moxie58.

1958 Dell Powers Sturgeon

The Cosmic Rape, originally uploaded by Mongibeddu.