I was skeptical about this book. It has some great things and some not so great things, but overall, I was pleasantly surprised. Despite some major pitfalls, the book has some good lessons for those looking to find new ways to talk about sex with a lover.
The good:
The illustrations in this book are beautiful. Tasteful, sensual, and erotic.
Kim and Mark, the authors, repeatedly stress the importance of checking in with your lover during sex, taking your time, communicating, and trying different techniques. The most important point in the book is that what your lover likes will change from day to day, so never assume that what worked yesterday will work today.
For people who need illustrations of how to do basic techniques, this book can be a great jumping off point. Especially for the cunnilingus/oral sex on a person with a clitoris techniques.
The bad:
This book is very heteronormative. Most of the content and techniques would work for man on woman and woman on woman. Some of the other techniques and concepts would be great for any body/sexuality/combination of lovers.
However, the entire book is based off the concept that a woman needs a man to set her free sexually, and it's his job to do that by coaxing her out of her shell.
While I understand what they were going for (they want to challenge straight men to up their game and to be more sensitive lovers), it came off as condescending and misogynistic at a few points.
There are SWEEPING assumptions in this book about what women like. Talking about various techniques and sensations is very important, but saying that ALL WOMEN love something or ALL BODIES are built a certain way lends itself to shaming people who don't fit into those boxes.
I wrote "ugh" several times in the margins of the book.
Overall:
This book is a good starting point for straight couples, mostly because of the illustrations.
There are other books that much better at talking about connection, communication, pleasure, and erotic situations (like Barbara Carrellas' "Urban Tantra").
Decent effort. Not a bad book, just not the best.