This book is sex-positive and engaging. It includes things I wouldn't expect to find in a textbook, such as information about diva cups, and advice on using orgasms and cats* to relieve menstrual cramps.
Unfortunately, the index contains many incorrect page numbers, and the illustration of homologous organs on page 119 boasts 4 significant errors.
The anatomy and physiology sections seem to be this book's most significant weakness: throughout, this information is not as logically and completely presented as it should be.
__
* "A heating pad or a hot water bottle (or, in a pinch, a cat) applied to the abdominal area may help relieve cramps; a warm bath may also help." (page 93)