Included: "Counter Foil," by George O. Smith; "A Bad Day for Sales," by Fritz Leiber; "Without a Thought," by Fred Saberhagan; "Solar Plexus," by James Blish; "The Macauley Circuit," by Robert Silverberg; "But Who Can Replace a Man?," by Brian W. Aldiss; "Instinct," by Lester del Rey; "The Twonky," by Lewis Padgett (Henry Kuttner); "Hunting Lodge," by Randall Garrett; and "With Folded Hands," by Jack Williamson.