Albert Ellis, Ph.D. founded Rational Emotive Behavior Therapy (REBT), the pioneering form of the modern Cognitive Behavior therapies. In a 1982 professional survey, Dr. Ellis was ranked as the second most influential psychotherapist in history. His name is a staple among psychologists, students, and historians around the world. He published over seven hundred articles and more than sixty books on psychotherapy, marital and family therapy, and sex therapy. Until his death in 2007, Dr. Ellis served as President Emeritus of the Albert Ellis Institute in New York, which provides professional training programs and psychotherapy to individuals, families and groups. To learn more, visit www.albertellis.org. Robert A. Harper, Ph.D. was a psychology and sociology professor, a psychiatric social worker in the U.S. Army, and prominent marriage and family counselor. He wrote several books with Albert Ellis, including Creative Marriage, A Guide to Successful Marriage, and A Guide to Rational Living, among others. His Psychoanalysis and Psychotherapy: 36 Systems was one of his most influential books. He lived and practiced in Washington, D.C., until his passing in 2004.