Margaret St. Clair, Ray Bradbury, Arthur C. Clarke, Philip K. Dick, H.G. Wells, Robert A. Heinlein, Robert Sheckley, Isaac Asimov, William Tenn, Fredric Brown, H. Beam Piper, Richard Matheson, A.E. van Vogt, Walter M. Miller Jr., Clifford D. Simak, Lion Miller, Katherine MacLean, Daniel Keyes, Frank M. Robinson, Carlo Fruttero, Charles F. Obstbaum