Charles B. Truax is, in addition to this book, author of Counseling and Psychotherapy: Process and Outcome, The Process of Group Psychotherapy: Relationships between Hypothesized Therapeutic Conditions and Intrapersonal Exploration, Toward a Tentative Measurement of the Central Therapeutic Ingredients, and Talking Won't Help: A Study of the Process and Outcome of Psychotherapy with Hospitalized Schizophrenics. Robert R. Carkhuff is president of Human Technology Inc. and chairman of Carkhuff Institute of Human Technology. He is the author of The Possibilities Leader, The Possibilities Mind, and Beyond Counseling and Therapy.