Now in a revised and expanded sixth edition, this is the leading text on evidence-based treatments for frequently encountered mental health problems. David H. Barlow has assembled preeminent experts to present their respective approaches in step-by-step detail, including extended case examples. Each chapter provides state-of-the-art information on the disorder at hand, explains the conceptual and empirical bases of intervention, and addresses the most pressing question asked by students and practitioners--"How do I do it?" Concise chapter introductions from Barlow highlight the unique features of each treatment and enhance the book's utility for teaching and training. New to This Edition *Existing chapters thoroughly revised to incorporate the latest empirical findings and clinical practices. *Chapter on "process-based therapy," a new third-wave approach for social anxiety. *Chapter on transdiagnostic treatment of self-injurious thoughts and behaviors. *Chapter on chronic pain.