Garden City, New York: Doubleday & Company, Inc., 1954. First edition. Touch of rubbing to boards edges, a fine copy in a nearly fine dust jacket with a touch of edge rubbing, a little black stain to spine ends and corners from old style jacket protector. An attractive copy with good color. (12445). Octavo, jacket illustration by Ruth Ray, boards. The first of the Robot novels. "A richly characterized, thoughtfully told story; justifiably a favorite among Asimov's readers." Anatomy of Wonder (1995) 3-10. [Reference: Hubin, p. 34. Sargent, British and American Utopian Literature, 1516-1985, p. 245].