Arthur M. Nezu, PhD, ABPP, is Distinguished University Professor of Psychology, Professor of Medicine, and Professor of Public Health, Drexel University; and Special Professor of Forensic Mental Health & Psychiatry, The University of Nottingham, UK. He is the Editor of" Journal of Consulting and Clinical Psychology; "Past President/Head, Association for Advancement of Behavior Therapy, American Academy of Cognitive and Behavioral Psychology, World Congress of Behavioural and Cognitive Therapies, and Behavioral Psychology Specialty Council. He is the author of over 90 journal articles, 75 book