Encyclopedia of Psychotherapy
edited by Michel Hersen and William Sledge

The Encyclopedia covers the major psychotherapies currently in practice as well as the classical approaches that laid the foundation for the various contemporary treatment approaches. It identifies the scientific studies conducted on the efficacy of the therapies and review the theoretical basis of each therapy.
These two volumes present an enormous amount of theory, practice, research, and training in a diverse, interesting, and controversial field. Overseeing some 300 contributors, Hersen (psychology, Pacific Univ.) and Sledge (psychiatry, Yale Univ.) collected about 160 articles, running in length from two to 20 pages.