Stefan G. Hofmann, Ph.D., is professor of psychology at the Department of Psychological and Brain Sciences at Boston University, where he directs the Psychotherapy and Emotion Research Laboratory. He has an actively funded research program studying various aspects of emotional disorders with a particular emphasis on anxiety disorders and cognitive behavioral therapy. He has won professional awards including the Aaron T. Beck Award for Significant and Enduring Contributions to the Field of Cognitive Therapy by the Academy of Cognitive Therapy. He is a fellow of the APA and APS and was president of various national and international professional societies, including the Association for Behavioral and Cognitive Therapies and the International Association for Cognitive Psychotherapy. He was also an advisor to the DSM-5 Development Process and a member of the DSM-5 Anxiety Disorder Sub-Work Group. Hofmann is identified as a Highly Cited Researcher by Thomson Reuters. He is currently editor of Cognitive Therapy and Research and has published more than 300 peer-reviewed journal articles and 15 books, including An Introduction of Modern CBT (Wiley-Blackwell), Emotion in Therapy (Guilford Press), and a popular textbook, Abnormal Psychology: An Integrative Approach (8th edition, Cengage Learning), with David Barlow and Mark Durand.