• 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