* Strip-Runner – novelette by Pamela Sargent * The Asenion Solution – short story by Robert Silverberg * Murder in the Urth Degree – short story by Edward Wellen * Trantor Falls – short story by Harry Turtledove * Dilemma – short story by Connie Willis * Maureen Birnbaum After Dark – short story by George Alec Effinger * Balance – short story by Mike Resnick * The Present Eternal – short story by Barry N. Malzberg * PAPPI – short story by Sheila Finch * The Reunion at the Mile-High – short story by Frederik Pohl * Plato's Cave – novelette by Poul Anderson * Foundation's Conscience – short story by George Zebrowski * Carhunters of the Concrete Prairie – novella by Robert Sheckley * The Overheard Conversation – short story by Edward D. Hoch * Blot – novelette by Hal Clement * The Fourth Law of Robotics – short story by Harry Harrison * The Originist – novella by Orson Scott Card Also contains prefaces by Ray Bradbury and Ben Bova and afterwords by Janet Asimov and Isaac Asimov