I heard about this book many years ago when I was still living in Germany. Yes, it made it even into the news of the German media. It drummed up a lot of attention. No wonder, since Kosher and Sex don’t go together for many people.
So, what exactly is kosher sex? A kosher cook book with sex advice in between? Kosher in this case means that sex can be done in a dignified and respectful way that ensures the sustainability of the partnership between husband and wife.
Rabbi Shmuley Boteach gives you a general overview on what Judaism teaches about sex and marriage. It helps you to set up the right mind to utilize sex in the right way, and warns you about pitfalls that can deteriorate any relationship. Simply put, it gives you an overview of what a good going marriage needs in order to last a long time (read: one of the key ingredients is a fulfilling sex life).
The only thing I think this book is missing is more practical advice on how to implement these values and marriage-enhancers into daily life. Judaism has so much to say practically about what and how to do the things.
All in all, it’s a good read and a good overview of how Judaism relates to sex and marital relationships. Read it.