This book is, for a most part, summaries of the major works of Moses Maimoides. Due to Moses' great influence upon Jewish understanding of the Torah and tradition, what he has to say is very important.I certainly do not agree with Moses on several specifics, but this book helps to understand his thinking and how he came to the positions he holds.In introducing each of the major works, the author provides some history, some background and provides references to various translations of the works. He then provides excerpts that relate to sexual ethic. The book raised many questions for me, but the author provides extensive footnotes which are great for further research.I might note that I do not believe that some of the English words chosen for the translation of some excerpts are appropriate. They represent modern concepts which would be foreign to Moses. For example, 'adolescence' (p.70) is an invention of the late 19th century. To the Jew, you were either a child or an adult, not an in between. So reader be warned.Should the author ever update the book, I don't expect it but it would be nice, I would like to see a glossary. There are couple of pages with a number of definitions (p.114ff), but it would be helpful to better organize and add to these definitions.