William J. McGuire's research on the diverse topics of attitudes, beliefs, self, thought systems, language, history, and methodology created and shaped social psychology in enduring ways. In this collection, his work appears with new commentary and bridging sections that illuminate the context in which the original papers were written. Here, students of psychology and its history can learn about the creative and critical processes that McGuire sought to study: the magical experiments on attitude innoculation showing that small doses of a persuasive message can increase resistance to later...