David J. Cain, PhD, ABPP, is the editor of Humanistic Psychotherapies: Handbook of Research and Practice (2002) and of Classics in the Person-Centered Approach (2002). He received his doctorate in clinical and community psychology from the University of Wyoming. At present, he teaches at the California School of Professional Psychology at Alliant International University, San Diego, and in the psychology ... Read moredepartment at Chapman University. A former colleague of Carl Rogers, he is the founder of the Association for the Development of the Person-Centered Approach and was the founder and editor of the Person-Centered Review. He is a diplomate and fellow in clinical psychology of the American Board of Professional Psychology and a member of the National Register of Certified Group Psychotherapists. Dr. Cain is the psychotherapy editor for the Journal of Humanistic Psychology and serves on the editorial boards of The Humanistic Psychologist, Person-Centered and Experiential Psychotherapies, Person-Centered Journal, and the Journal of Contemporary Psychotherapy. Dr. Cain is a former president of the Society for Humanistic Psychology of the American Psychological Association and initiated its first annual conference. His primary professional commitment is the advancement of humanistic psychology and psychotherapy. He maintains a private practice in Carlsbad and San Marcos, California.   Show Less