Book excerpt: Designed for quick, everyday reference, Handbook of Targeted Cancer Therapy and Immunotherapy: Gastrointestinal Cancer provides a practical overview of this rapidly advancing field. Comprehensive yet concise, this easy-access resource by Dr. Milind Javle of MD Anderson Cancer Center and Dr. Mitesh J. Board of Mayo Clinic helps you filter and apply the most recent discoveries as they pertain to specific tumor types, actionable molecular targets, and clinical performance of investigational targeted agents and combinations of agents.