The Sex Bible is a book worth having. The pictures are explicit, and some of the best imagery I have seen for helping couples with sexual positions. It also includes many, many tips from how to give good oral sex to the best porn for women. I recommend this book at the center for couples who are just beginning to explore their sexuality.
That being said, it is not for everyone. It is made in a large coffee table format and I often have people explain that they have no place to hide all the things we are giving them. You definitely don’t want your kids to find this one. I also don’t recommend this book for very religious couples. Though these are the very couples who often want a visual aid, I think some may find it to be too much to handle.
If you or someone you know is looking for a fun and helpful book on sex, this is a great place to start!