An unflinching, comprehensive guide to everything from sexually transmitted infections to the science of blood flow, The Penis Book prominently features an easy-to-follow holistic five-step plan for optimum penis health, including plant-based eating recommendations, information on some penis-healthy foods, and suggested exercises for penis wellbeing. Useful to penis owners and penis appreciators alike, The Penis Book is a one-stop-shop for the care and maintenance of the penis in your life.