David H. Barlow is Professor of Psychology and Psychiatry, Emeritus and the Founder of the Center for Anxiety and Related Disorders at Boston University. He has published over 650 articles and chapters and over 90 books and clinical manuals. He is the recipient of numerous awards, including honorary degrees from the University of Vermont and William James College, and the two highest awards in psychology, the Distinguished Scientific Award for Applications of Psychology from the American Psychological Association and James McKeen Cattell Fellow Award from the Association for Psychological Science honoring individuals for their lifetime of significant intellectual achievements in applied psychological research. Michelle G. Craske, Ph.D. is Distinguished Professor of Psychology, Psychiatry and Biobehavioral Sciences, Miller Family Endowed Term Chair, Director of the Anxiety and Depression Research Center, and Associate Director of the Staglin Family Music Center for Behavioral and Brain Health, at UCLA. She has published extensively in the area of fear, anxiety and depression and has been the recipient of extramural funding since 1993 for research pertaining to cognitive, behavioral, psychophysiological and neural risk factors for anxiety and depression that have informed novel treatments; innovative approaches to optimizing therapies such as virtual reality; and implementing scalable treatment models to underserved populations.