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