Some people think that oral sex is something that is a natural thing and that people instinctively know how to do it. That is far from the truth. We all have to learn how to do it at some point.
He Guide To Going Down by Yvonne K. Fulbright, Ph.D is that how to book for women and men that want to learn a bit more about how to perform oral on a male lover.
It has a very good overview of all kinds of sex tips to use. Anything from the anatomy of a dick and what parts of more sensitive and the why those parts are more sensitive. It also talks about different kinds of techniques (some that even I hadn’t heard of before.) They even go over different ways of breathing and how to keep your jaw from locking up while doing it.
The only major problem is that it is very much being written for women to read. But we all know that men do need this book as well and it would be nice if it would talk to them as well.