Shannon Sauer-Zavala, PhD, is Assistant Professor in the Department of Psychology at the University of Kentucky and founding Director of Clinical Services at the University’s Center for Emotional Health. Her research is focused on exploring emotion-focused mechanisms that maintain psychological symptoms (particularly high-risk symptoms such as suicidal thoughts and behaviors) and using this information to develop more targeted, easily disseminated intervention strategies. Dr. Sauer-Zavala has coauthored over 75 peer-reviewed articles, numerous book chapters, and three books. She is a codeveloper of the unified protocol for the transdiagnostic treatment of emotional disorders. David H. Barlow, PhD, ABPP, is Professor Emeritus of Psychology and Psychiatry and Founder and Director Emeritus of the Center for Anxiety and Related Disorders at Boston University. Dr. Barlow has published over 600 articles and chapters and over 80 books and clinical manuals, mostly on the nature and treatment of emotional disorders and clinical research methodology. His books and manuals have been translated into more than 20 languages. His numerous awards and citations include psychology’s three highest honors: the Distinguished Scientific Award for the Applications of Psychology from the American Psychological Association, the James McKeen Cattell Fellow Award from the Association for Psychological Science, and the Gold Medal Award for Life Achievement in the Practice of Psychology from the American Psychological Foundation.