Stefan G. Hofmann, Ph.D. is an international expert on psychotherapy for emotional disorders. He is the Alexander von Humboldt Professor for Translational Clinical Psychology and the Department of Clinical Psychology, Philipps University Marburg, Germany, and Professor of Clinical Professor of Psychology at the Department of Psychological and Brain Sciences at Boston University. Stefan was born and raised in Germany. He studied psychology at the University of Marburg, Germany, where he received his B.A., M.S., and Ph.D. He came to the US in 1991 and has been calling Boston his home since 1996. Prior to that, he was at SUNY Albany and before that at Stanford University. He was president of the Association for Behavioral and Cognitive Therapies (ABCT; 2012-2013) and is presently president of the International Association for Cognitive Psychotherapy. He is presently editor-in-chief of Cognitive Therapy and Research. He is the recipient of the Humboldt Prize (The Alexander von Humboldt Research Award), ABCT’s Outstanding Service Award, the Aaron T. Beck Award for Excellence in Contributions to CBT by Assumption College and the Aaron T. Beck Award for Significant and Enduring Contributions to the Field of Cognitive Therapy by Academy of Cognitive Therapy. He was an advisor to the DSM-5 Development Process and was a member of the DSM-5 Anxiety Disorder Sub-Work Group and member of the Cross-Cutting Culture Review Group of the DSM-5-TR. Stefan has published widely as an author of more than 400 peer-reviewed journal articles and 20 books, including An Introduction of Modern CBT (Wiley-Blackwell) and Emotion in Therapy: From Science to Practice (by Guilford Press). He is also the co-author (together with David Barlow and Mark Durand) of one of the best-selling Abnormal Psychology text books in the world, Abnormal Psychology: An Integrative Approach (8th Edition). His research focuses on the mechanism of treatment change, translating discoveries from neuroscience into clinical applications, emotion regulation, and cultural expressions of psychopathology. Stefan has been awarded generous research grants from the NIH and NARSAD. He is a fellow of the Association for Behavioural and Cognitive Therapies and the Association for Psychological Science. He gave up his American Psychological Association fellowship status when he resigned in protest over the fact that APA was actively involved in torturing political prisoners. He lectures internationally, is a licensed psychologist, and is married with two children. Weblink: http://www.bostonanxiety.org/