Taking a look at some questions at the human penis, this book explores the answers and facts of this sex organ — presented by a professor at UC Irvine’s Department of Urology, Dr. Aaron Spitz. Guiding the reader through the basics to the more obscure, Dr. Spitz covers topics such as sexually transmitted diseases and infections, the science of blood flow, holistic penis maintenance and health, as well as exercises for sexual wellbeing. Experienced at looking at the penis through the perspective of a urologist, the author doesn’t shy away from the questions others may be reluctant to look into.