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 chapters, and over 20 books.Christine Maguth Nezu, PhD, ABPP, is professor of psychology and associate professor of medicine at Drexel University.Thomas J. D’Zurilla, PhD, University of Illinois at Urbana-Champaign, is Professor Emeritus in the Department of Psychology at Stony Brook University.