Alternative cover for same ISBN: here. A collection of Simak's sci-fi stories. Contents: - All the Traps of Earth (1960) novelette - Good Night, Mr James (1951) novelette - Drop Dead (1956) novelette - No Life of Their Own (1959) novella - The Sitters (1958) novelette - Crying Jag (1960) novelette - Installment Plan (1959) novelette - Condition of Employment (1960) short story - Project Mastodon (1955) novelette.