Aaron T. Beck, MD, until his death in 2021, was Professor Emeritus of Psychiatry at the University of Pennsylvania and President Emeritus of the Beck Institute for Cognitive Behavior Therapy. Internationally recognized as the founder of cognitive therapy, Dr. Beck has been credited with shaping the face of American psychiatry and was cited by American Psychologist as "one of the five most influential psychotherapists of all time."

A. John Rush, MD, ABPN, is Professor Emeritus at Duke-National University of Singapore and Adjunct Professor of Psychiatry and Behavioral Sciences at Duke University. His work has led to the development, evaluation, and implementation of measurement-based care; clinical practice guidelines; and the recognition and management of difficult-to-treat depressions.

Brian F. Shaw, PhD, is CEO of Continicare Corporation, a digital therapeutics company that provides mental health assessments and cognitive-behavioral therapy interventions. A Fellow of the Canadian Psychological Association, Dr. Shaw has conducted research on cognitive factors as a risk for depressive and anxiety disorders and on therapist competency and treatment outcomes in cognitive therapy.

Gary Emery, PhD, is a clinical psychologist with over 50 years in professional practice. One of the original authors of the cognitive therapy treatment manual for depression, he also collaborated with Aaron T. Beck on the first major cognitive therapy treatment manual for anxiety disorders.

Robert J. DeRubeis, PhD, is Professor of Psychology at the University of Pennsylvania, where he has served as Director of Clinical Training, Department Chair, and Associate Dean. His trials comparing cognitive therapy to medications for severe depression have been published in the American Journal of Psychiatry and the Archives of General Psychiatry, and JAMA Psychiatry.

Steven D. Hollon, PhD, is the Gertrude Conaway Vanderbilt Professor of Psychology at Vanderbilt University. Dr. Hollon's work has focused on the treatment and prevention of depression and has shown cognitive therapy to be as efficacious as antidepressant medications in the acute treatment of severe depression, with more enduring effects.