Willem Kuyken, PhD, is Professor of Clinical Psychology at the University of Exeter, United Kingdom; Cofounder of the Mood Disorders Centre; and a Fellow of the Academy of Cognitive Therapy. His primary research and clinical interests are case conceptualization and cognitive-behavioral approaches to depression, and he has published more than 50 articles and book chapters. Dr. Kuyken is a recipient of the May Davidson Award from the British Psychological Society Christine A. Padesky, PhD, is a Distinguished Founding Fellow of the Academy of Cognitive Therapy and recipient of its Aaron T. Beck Award. She is an internationally renowned speaker, consultant, and coauthor of six books, including the bestselling Mind Over Mood. Dr. Padesky's numerous awards include the Distinguished Contribution to Psychology Award from the California Psychological Association. Through her website, www.padesky.com, she produces audiovisual programs on case conceptualization and other topics that provide CBT training for therapists in more than 45 countries Robert Dudley, PhD, is a Consultant Clinical Psychologist for the Early Intervention in Psychosis Service at the Northumberland, Tyne, and Wear Mental Health NHS Trust, United Kingdom. He is currently serving as a Beck Institute Scholar at the Beck Institute for Cognitive Therapy and Research. Dr. Dudley's primary clinical and research focus is the understanding and treatment of psychotic symptoms. As a clinician, trainer, and supervisor, he developed an interest in case conceptualization and has undertaken several research projects in this area