Since you are reading this post, either you are not offended by the topic or you are offended but still curiosity got the better of you. This is not a post about a dominatrix story. If that is why you are here, then I would recommend watching the BBC series "Sherlock", season 2, episode 1 "A Scandal In Belgravia" for a tasteful dominatrix tale.
This post is about a new book I am reading, and liking very much, called "Sex and Punishment: Four Thousand Years of Judging Desire" by Eric Berkowitz. This is a very interesting book on how different cultures, governments, religions, individuals judge how this basic human desire is/has been practiced throughout history. How one culture's leisure activity becomes another's crime just by crossing over borders. Highly recommended to the curious (and open) mind.