It will take me forever to consume this because its a huge book. Its worth the time and money though. The information is awesome. I considered myself pretty educated on sex and the body before, but this books goes way beyond any other book. I love how frank and straight forward it is. Not only does it have extensive how-to’s and illustrations, but it also has the why’s and history. I would recommend this book to anyone that’s looking to understand the how’s and why’s of sex.