Written by a psychologist and expert in treating obsessive-compulsive disorder (OCD), this manual brings together five powerful, evidence-based therapies to help clinicians create a concise and customizable treatment plan. The methods-including cognitive behavioral therapy (CBT), exposure therapy, and acceptance and commitment therapy (ACT)-are presented in an easy-to-follow format, incorporate the newest research, and give clinicians a wide range of skills for addressing the mechanisms underlying OCD.