Jacket lacking. Slightly shaken. Coffee stains. Edge wear. Corners bumped. 

• Introduction by Robert Silverberg, Martin Harry Greenberg
• Beyond bedlam by Wyman Guin
• Equinoctial by John Varley
• By his bootstraps by Robert A. Heinlein
• The golden helix by Theodore Sturgeon
• Born with the dead by Robert Silverberg
• Second game by Charles V. De Vet and Katherine MacLean
• The dead past by Isaac Asimov
• The road to the sea by Arthur C. Clarke
• The star pit by Samuel R. Delany
• Giant killer by A. Bertram Chandler
• A case of conscience by James Blish
• Dio by Damon Knight
• Houston, Houston, do you read? by James Tiptree, Jr..
• On the storm planet by Cordwainer Smith
• The miracle workers by Jack Vance