This is the first revised, expanded, and updated edition of Psychoanalytic Terms and Concepts since its third edition in 1994. It presents a scholarly exposition of English-language psychoanalytic terms and concepts, including those from all contemporary schools of theory and practice. Each entry starts with a brief definition that is followed by an explanation of the significance of the term/concept for psychoanalysis, its historical development, and the present day controversies about best usage.