Amazon.com description: Product Description: Book Club edition, which followed the Doubleday first edition. Generally considered the best science fiction anthology. The content of the book was decided by members of the Science Fiction Writers of America and the editor. Included: Stanley G. Weinbaum, A Martian Odyssey (1934); John W. Campbell, Twilight (1934); Lester del Rey, Helen O'Loy (1938); Robert A. Heinlein, The Roads Must Roll (1940); Theodore Sturgeon, Microcosmic God (1941); Isaac Asimov, Nightfall (1941); A. E. van Vogt, The Weapon Shop (1942); Lewis Padgett, Mimsy Were the Borogoves (1943); Clifford D. Simak, Huddling Place (1944); Fredric Brown, Arena (1944); Murray Leinster, First Contact (1945); Judith Merril, That Only a Mother (1948); Cordwainer Smith, Scanners Live in Vain (1948); Ray Bradbury, Mars is Heaven! (1948); Cyril M. Kornbluth, The Little Black Bag (1950); Richard Matheson, Born of Man and Woman (1950); Fritz Leiber, Coming Attraction (1950); Anthony Boucher, The Quest for Saint Aquin (1951); James Blish, Surface Tension (1952); Arthur C. Clarke, The Nine Billion Names of God (1953); Jerome Bixby, It's a Good Life (1953); Tom Godwin, The Cold Equations (1954); Alfred Bester, Fondly Fahrenheit (1954); Damon Knight, The Country of the Kind (1955); Daniel Keyes, Flowers for Algernon (1959); Roger Zelazny, A Rose for Ecclesiastes (1963).