"We wanted to give people a sense of not only where to put their sexual organs, but where to put their arms and legs."

"If you have never seen a movie, never read a book, how are you supposed to know what you do?... It's a very useful book for people who were raised religious and have never received any form of sexuality education..."

Instead there is a sealed envelope on the back flap, with a warning to readers that it contains sexual diagrams. If you don't want to look at them, you can rip off the envelope and throw it away....

There are three diagrams of basic sexual positions.... The sketches are simple: outlined figures with no faces.