Nikolaos Kazantzis, PhD ("Nik"), is Founding Director of the Cognitive Behavior Therapy Research Unit (CBTRU), based in Melbourne, Australia, and is an adjunct faculty member at the Beck Institute for Cognitive Behavior Therapy. The research conducted by the CBTRU team has yielded over 200 scholarly publications, including 6 books for clinicians, and is highly cited by the international scientific community; for example, an article coauthored by Dr. Kazantzis was the most downloaded article across all 89 journals of the American Psychological Association in 2019. Dr. Kazantzis is Editor-in-Chief of the journal Cognitive and Behavioral Practice and Editor of Springer Nature's "CBT: Science into Practice" book series. In recognition of his scholarly contributions, he has received the Beck Scholar Award from the Beck Institute for Cognitive Behavior Therapy. Dr. Kazantzis has designed national CBT training programs for the Australian Psychological Society and has delivered CBT training in 23 countries worldwide. Now retired from academia, Dr. Kazantzis runs a private practice in Toorak, Melbourne, Australia. His websites are www.nikolaoskazantzis.com and www.cbtru.com. Mark A. Reinecke, PhD, is Professor of Psychiatry and Behavioral Sciences and Chief of the Division of Psychology at Northwestern University's Feinberg School of Medicine. He serves on the staff of Northwestern Memorial Hospital and Children's Memorial Hospital, Chicago. He is a Distinguished Fellow and former president of the Academy of Cognitive and Behavioral Therapies and a Diplomate of the American Board of Professional Psychology. His research and clinical interests focus on understanding and treating depression and suicide among children and adolescents. Dr. Reinecke's numerous publications include seven books. Arthur Freeman, EdD, LLD (h.c.), ABPP, until his death in 2020, was Professor Emeritus of Psychology at the Philadelphia College of Osteopathic Medicine. A leading expert on cognitive-behavioral therapy, he was a past president of the Association for Behavioral and Cognitive Therapies and of the International Association for Cognitive Psychotherapy, and a Distinguished Founding Fellow of the Academy of Cognitive and Behavioral Therapies. Dr. Freeman's research and clinical interests included marital and family therapy and cognitive-behavioral treatment of depression, anxiety, and personality disorders. The author of over 100 chapters and articles, he lectured in 45 countries and his work has been translated into 20 languages.
