This book has it all! Both an informative "sex ed" type guide and erotic manual, it's got everything from a comprehensive run-down on safer sex in plain language anybody can comprehend without feeling talked-down to, and even tips and tricks for improving and enhancing one's sex life. It's GBLT / Queer-friendly, kink-friendly, and polyamoury-friendly, and makes good use of real-life stories to add to the friendly charm and often humorous approach to a good and practical sex education; it even pokes fun at previous editions, and a new edition comes out at least every couple of years, as the author is always looking for ways to improve the content. I've been hooked since the third edition! I'd recommend this to absolutely anybody, from a college student looking for a non-nonsense and engaging start to exploring their own sexuality, to a parent looking for a comprehensive and plain-language guide to improve "the talk" (there's even a chapter on that!).