The Transdiagnostic Road Map to Case Formulation and Treatment Planning is the first book to provide an empirically-based method for identifying specific psychological mechanisms underlying clients'presenting problems and symptoms and linking them to clinical interventions that comprise individualized treatment plans. The transdiagnostic approach outlined in this book signals a revolutionary departure from traditional treatments relying on DSM categorization and gives mental health professionals an essential resource for treating a broad range of patient problems. It builds on existing case formulation approaches by bridging research on psychological mechanisms with a practical guide to assessment and treatment.