Bruce S. Liese, PhD, ABPP, is Professor of Family Medicine and Psychiatry at the University of Kansas Medical Center and Clinical Director of the Cofrin Logan Center for Addiction Research and Treatment at the University of Kansas. Dr. Liese has served as President of the Society of Addiction Psychology, Division 50 of the American Psychological Association (APA).

His scholarly work has focused on the treatment of complex mental health problems and addictions. He has published widely and is presently on three APA journal editorial boards. He has taught courses on addictions, psychotherapy, and evidence-based practice and supervised hundreds of psychotherapy trainees. Dr. Liese is a recipient of the Presidents Citation for Distinguished Service and the Distinguished Career Contributions to Education and Training Award from APA Division 50, as well as an APA Presidential Citation for service to his community.

Aaron T. Beck, MD, is the founder of cognitive therapy, University Professor Emeritus of Psychiatry at the University of Pennsylvania, and President Emeritus of the Beck Institute for Cognitive Behavior Therapy.

Dr. Beck is the recipient of awards including the Albert Lasker Clinical Medical Research Award, the Lifetime Achievement Award from the American Psychological Association, the Distinguished Service Award from the American Psychiatric Association, the James McKeen Cattell Fellow Award in Applied Psychology from the Association for Psychological Science, and the Sarnat International Prize in Mental Health and Gustav O. Lienhard Award from the Institute of Medicine. He is author or editor of numerous books for professionals and the general public.