The Penis Book - A Doctor's Complete Guide to the Penis

Let Dr. Spitz, who served as assistant clinical professor at for 15 years and who is a regularly featured guest on   guide you through all of your penis questions in  . A comprehensive guide to everything from sexually transmitted infections to the science of blood flow,   features an easy-to-follow holistic 5-step plan for optimum penis health, including: Useful to people of all genders,   is an ultimate guide for the care and maintenance of the penis in your life.