Reddit reviews Human Sexuality Today

At the University of New Orleans there is an extremely informative Sex-ed class, taunt by Dr. King. This is the textbook. I still have mine and read it often. Very useful stuff from the how-it-works to sexual behavior and habits, STDs, pregnancy and contraceptives like condoms and many different form of birth control. Most importantly there's alot about how to talk and communicate about sex with your SO. I've found some of the research and numbers, statistics on certain things to be slightly outdated, alot of it being from the 80's, early 90's though this looks like a newer version than the one I have. Still a fantastic source of good information.

http://www.amazon.com/Human-Sexuality-Today-VangoBooks-6th/dp/0136042457/ref=sr_1_3?ie=UTF8&qid=1324324720&sr=8-3