The past decade has seen sweeping changes in the diagnosis and treatment of sexual disorders. Bringing the field of sex therapy up to date, the third edition of this classic work reports on a wealth of new developments in theory, research, and clinical practice. Existing chapters have been extensively revised, many with new authorship, and additional chapters added to address emerging areas of interest. Throughout, clear guidelines for assessment and treatment are brought to life by illustrative clinical material. Highlights of this edition include increased coverage of sexual desire disorders; a greatly expanded section on female sexual disorders, including a new chapter on sexual arousal difficulties in women; and a completely updated section on male sexual disorders, featuring a full discussion of Viagra and other vasoactive drugs. Other new chapters cover paraphilias and gender identity disorders. Featuring contributions from leading authorities, this volume maintains a careful balance between psychological and medical concerns. It will continue to serve as the definitive reference and text for both new and experienced clinicians, as well as students in the full range of mental health fields.