For psychotherapists, Cain (California School of Professional Psychology, Alliant International U., and psychology, Chapman U.) explains the person-centered approach to psychotherapy, its history, theory and key concepts, types, process, modern clinical practice, and evaluation. He addresses clinical research supporting its efficacy, gives case examples, and discusses therapy with diverse clients, problems and populations where this therapy is and is not effective, and future developments. Annotation ©2010 Book News, Inc., Portland, OR (booknews.com)