Digit Books paperback, 1963 reprint. Cover artist uncredited. "Earthman Gary Towler is treated like a pariah; for his task as ch...

Pengiun Books paperback, 1973. Cover design by David Pelham. "One moment a man sits on a suburban hill. The next he is whirling ...

Ace Double paperback, 1970. Cover art by Josh Kirby. "They slithered and twittered and jangled, for they were not men. There was...

Universal paperback, 1978. Cover by Les Edwards (thanks, Staz). "WANTED:   terrestroid planets, habitable but uninhabited, cle...

"Born in 1884, Frank R. Paul was slated to study for the priesthood; instead, he studied art and architectural and mechanical dra...

Sphere paperback, 1976. Cover artist uncredited. "The problem of immortality was solved in the 21st century: at forty, your brai...

NEL paperback, 1973 reprint. Cover artwork by Bruce Pennington. "In the very depths of the densest jungle in Brazil, there exist...

Magnum paperback, 1981. Cover illustration by Chris Moore. "A medical research trip to Egypt leads to the opening of a magnifice...

Grafton paperback, 1988 reprint. Cover by Joe Petagno. "Who are the weavers of the dark design? The myriad dead of thirty thousa...

Cover by Mike Hinge. Analog erroneously credited the cover artist as Rick Sternbach for this issue. Thanks to I. Richards who spotte...

Cover by Rick Sternbach.

Cover by Kelly Freas.

Cover by John Schoenherr. Interior artwork by John Schoenherr from Collision Course .

Cover by Kelly Freas.

Cover by Leo Summers.