New York: Mercury Press, 1960. First edition - Includes "A Day in the Suburbs" by Evelyn E. Smith; "Goodbye" by Burton Raffel; "Button, Button" by Gordon R. Dickson; "The Man on Top" by R. Bretnor; a novelet, "The NRACP" by George P. Elliott; "Two in Homage" by Kit Reed; "Doctor Royker's Experiment" by Joseph Whitehill. as well as an article - "Tools of the Trade" - by Isaac Asimov, book review by Damon Knight and more. Cover by Emsh