Drawing inspiration from philosophy, political and social theory, decision theory, economics, psychology, history and literature, Yoon Elster's classic Sour Grapes continues and expands upon the reflections of his celebrated early work, Ulysses and the Sirens. Elster begins by examining the labels of rationality before taking on the concepts of irrational behavior, desires, and beliefs through highly sophisticated arguments that undermine orthodox rational choice theories. Published in a new serial design and with a specially written introduction by Richard Holton, which reveals the importance of this book for philosophical study, Sour Grapes has been revived for a new generation of readers.