Summary: "Everything you always wanted to know about sex” by David R. Reuben, M.D. covers a range of sexual topics from male and female sexual organs to sexual intercourse, impotence, frigidity, prostitution, birth control, abortion, venereal diseases, and menopause. The book challenges societal norms and taboos around sex, stating that sexual behavior should not be judged by clergymen or decency leagues who often have their own sexual issues. It discusses the importance of sexual knowledge and presents facts in a direct and informative manner, unlike traditional manuals that focus on socially acceptable intercourse. Reuben explores the connections between sexual pleasure, fear, and guilt, emphasizing that sexual enjoyment is an individual's responsibility. He also debunks myths around pornography, sex crimes, and the harmful effects of pornography. The book includes real-life stories and experiences, shedding light on the complexities and challenges individuals face in their sexual lives.