Sex

While a bit dated and The statistic listed are a bit skewed since the surveys on alternative livestyles were done in San Franciso, I love the wealth of information in this book. While it is likely wonderful for beginners, I found that even after 12 years of a healthy relationship with my wife, this book has added depth to the knowledge we have aquired through practical application. This book is like an almanac, listing statistics and definitions for just about everything. It describes physiological reactions to intercourse, broken out by male and female (did you know we sweat in different places when we peak?) and even offers alternative positions for those with bad backs, pregnant bellies, or weak legs.