The application of cognitive therapy is the subject of this casebook, and the treatment is represented by some of the field's leading practitioners. Since its development 35 years ago, the practice of cognitive therapy has been extended beyond the treatment of depression, now also dealing with panic disorders, post-traumatic stress disorders, substance abuse, paranoid delusional disorders, marital conflict, sexual dysfunction, and a variety of affective, anxiety and personality disorders. This volume is aimed at clinicians interested in applying cognitive therapy to a wide range of problems. Each chapter presents treatment descriptions and interventions, offering opinions on why the method works and how to apply it in the realities of clinical practice.