Other authors: Brian W. Aldiss (Contributor), Poul Anderson (Contributor), Isaac Asimov (Contributor), JG Ballard (Contributor), James Blish (Contributor) — 34 more, John W. Campbell Jr (Contributor), Terry Carr (Contributor), Thomas D. Clareson (Preface), Arthur C. Clarke (Contributor), Ralph S. Clem (Contributor), Theodore R. Cogswell (Contributor), L. Sprague de Camp (Contributor), Philip K. Dick (Contributor), Gordon R. Dickson (Contributor), George Alec Effinger (Contributor), Charles Elkins (Contributor), Philip Jose Farmer (Contributor), Beverly Friend (Contributor), Hugo Gernsback (Contributor), James E. Gunn (Contributor), David Ketterer (Contributor), Damon Knight (Contributor), CM Kornbluth (Contributor), Ursula K. Le Guin (Contributor), Fritz Leiber (Contributor), Larry Niven (Contributor), Alan E. Nourse (Contributor), Frederik Pohl (Preface), Frederik Pohl (Contributor), Pamela Sargent (Contributor), Thomas N. Scortia (Contributor), Robert Sheckley (Contributor), Robert Silverberg (Contributor), Cordwainer Smith (Contributor), Theodore Sturgeon (Contributor), Donald Wandrei (Contributor), Jack Williamson (Contributor), George Zebrowski (Contributor), Roger Zelazny (Contributor)

Other authors: See the other authors section.