Book excerpt: Leading experts in the field of behavior therapy review developments in the field and highlight implications for clinical practice. Following a comprehensive overview of behavior therapy by Editor Cyril Franks, each chapter provides an in-depth review of the pertinent literature and a translation of the findings into ramifications for clinical practice and concludes with an overview of the major indicators and contra-indicators for direct application. The practicing clinician will find practical, relevant chapters on obesity, smoking, alcohol abuse, anxiety, depression, insomnia, and sexual dysfunction.