1961 Ballantine Clingerman

A Cupful of Space, originally uploaded by Martin Isaac.

1973 Signet Charles Moll Anderson

The Queen of Air and Darkness, originally uploaded by Wolfwings.

1966 Ace Gaughan Leinster

SOS From Three Worlds, originally uploaded by Martin Isaac.

1961 Ballantine Moore

Greener than you think, originally uploaded by raceroberts.

1963 Belmont Long

It was the day of the robot, originally uploaded by raceroberts.

Ballantine Wyndham

cuckoo, originally uploaded by J U D Y G O R E L A N D.

1967 Ace Kelly Freas Chandler

1967 Ace Gaughan High

High, Philip E. - Reality Forbidden (1967 PB), originally uploaded by sdobie.

1962 Ballantine Wilson

Time Out For Tomorrow, originally uploaded by Martin Isaac.

1968 Bantam E Jones Delany

Polish józef petruk

, originally uploaded by junkyard.dogs.

1973 Harrow Greene Moorcock

An Alien Heat, originally uploaded by Wolfwings.

1963 Penguin Geoffrey Martin Stapledon

Last and First Men, originally uploaded by Martin Isaac.

1965 Ace Jack Gaughan Chambers

The King in Yellow, originally uploaded by jovike.

1965 Italian Dick

Philip K. Dick - La svastica sul sole, originally uploaded by Raymond Ch.

Italian Karel Thole Asimov

Isaac Asimov - L'atra faccia della spirale, originally uploaded by Raymond Ch.

1978 Italian Thole Asimov

Isaac Asimov - Il Crollo della Galassia Centrale, originally uploaded by Raymond Ch.

Ace Frazetta Burroughs

Beyond the Farthest Star, originally uploaded by jholbo.

Doubleday Goulart

Brinkman, originally uploaded by TheMachineStops.

German Norton

Utopia Grossband 081, originally uploaded by micky the pixel.

Ace Ed Emshwiller Maine

worldwithoutmen-emsh, originally uploaded by mystique123_2000.

1967 Signet Brunner

productionsoftime-unverified, originally uploaded by mystique123_2000.

Signet Szafran Silverberg

atimeofchangesszafransc, originally uploaded by mystique123_2000.

Signet Gene Szafran Heinlein

orphansofthesky, originally uploaded by mystique123_2000.

Ace Michael Herring Brunner

bornundermars, originally uploaded by mystique123_2000.

DAW Michael Gilbert Gunn

breakingpoint, originally uploaded by mystique123_2000.

1975 Polish kazimierz hałakiewicz Aldiss

, originally uploaded by junkyard.dogs.

Signet David McCall Johnston

tomorrow1, originally uploaded by mystique123_2000.

Ballantine Steele Savage Brunner

wholemansc, originally uploaded by mystique123_2000.

Bantam

aseaofspacesc, originally uploaded by mystique123_2000.

Ace Jeff Jones Andre Norton

sargassoofspace-jeff-jones-ace74981, originally uploaded by mystique123_2000.

Ace Tubb

veruchia, originally uploaded by mystique123_2000.

1963 Belmont Maguire Howard

noveletsofsciencefictionsc, originally uploaded by mystique123_2000.

Ballantine Robert Foster Pohl

abominableearthmansc, originally uploaded by mystique123_2000.

1963 Four Squares Blish

James Blish - Titan's Daughter, originally uploaded by jovike.

1971 Panther Dennis Rolfe Asimov

Isaac Asimov - The End of Eternity, originally uploaded by jovike.

Berkley Richard Powers Wells

fantastic vintage science fiction art, originally uploaded by modern_fred.

1974 Pocket Charles Moll Malzberg

On an Alien Planet - Barry N. Malzberg, originally uploaded by Cadwalader Ringgold.

1967 Collier Punchatz Conklin

great science fiction by scientists, originally uploaded by cdrummbks.

Signet Gene Szafran Hoskins

faroutpeople, originally uploaded by mystique123_2000.

1967 Ace Jack Gaughan Moorcock

The Wrecks of Time, originally uploaded by jovike.

1967 Ace Jack Gaughan Petaja

Tramontane, originally uploaded by jovike.

1969 Sphere Moorcock

The Ice Schooner, originally uploaded by jovike.

1960 Ballantine Powers Clarke

Incredible Vintage SF Paperback Covers, originally uploaded by modern_fred.

1959 Gold Medal Lehr Leinster

Incredible Vintage SF Paperback Covers, originally uploaded by modern_fred.

DAW Greg Theakston Van Vogt

earthfactorxsc, originally uploaded by mystique123_2000.

Signet Stanislaw Fernandes Clarke

othersideofthesky, originally uploaded by mystique123_2000.

1960 Ballantine Oliver

1943 Pocket Wollheim

Pocket Book of Science Fiction, The (Pocket 214) 1943 AUTHOR: Donald A. Wollheim (editor) ARTIST: (unknown), originally uploaded by Hang Fire Books.

1973 Ballantine Phil Kirkland Silverberg

Up the Line (Ballantine 23445) 1973 AUTHOR: Robert Silverberg ARTIST: Phil Kirkland, originally uploaded by Hang Fire Books.