Book excerpt: Edited by recognized experts Michel Hersen and Johan Rosqvist, Handbook of Psychological Assessment, Case Conceptualization, and Treatment, Volume 1, Adults, is a thorough and practical reference for those working with adults. Bringing together the most current theories and evidence-based applications, chapters address issues of importance including ethics, medical issues, panic and agoraphobia, obsessive-compulsive disorder, and posttraumatic stress disorder. Each chapter follows a structured format, opening with an overview of assessment, followed by case conceptualization, and, finally, recommended treatment.