Paperback books--sci-fi

Ace, Avon, Ballantine, Bantam, Berkley, Dell, Fawcett Gold Medal, Gold Eagle, Lancer, Panther, Penguin, Perma, Pocket Books, Pyramid, Signet--just a few trade publishers of science fiction paperbacks. They featured the giants of science fiction: Isaac Asimov, Ray Bradbury, Arthur C. Clarke, Ray Cummings, Philip K. Dick, Philip José Farmer, Fred Hoyle, Fritz Leiber, Clifford D. Simak, Theodore Sturgeon. Here are some covers from the days of paperback popularity.

A Short History of Paperbacks

Paperback Books

Paperback Books in the 20th Century: A Resource Review

Paperback Revolution

Sex in space--redux