Avon Books, 1978. Paperback, first printing. With an introduction by the editor. Basilisk (1972) by Harlan Ellison; The Dueling Machine (1963) by Ben Bova; A Man to My Wounding (1959) by Poul Anderson; Commando Raid (1970) by Harry Harrison; Curtains (1974) by George Alec Effinger; Mercenary \[Joe Mauser\] (1962)by Mack Reynolds; Rule Golden (1954) by Damon Knight; The State of Ultimate Peace (1974) by William Nabors; By the Numbers (1973) essay by Isaac Asimov; To Howard A Modest Proposal (1974) by Joe Haldeman.