Being an American of Italian ancestry I'm more interested in the American and Italian mafia, so that is what I mostly read about. I have read "Red Mafiya," the so called Russian mafia, is really a Jewish mafia if you ask me. They haven't been around very long, so it hard to get a grasp of their thing. I've read a few books about current day Russia and they were pretty good. The way of Russia is so foreign to me its hard to get really into it at time though. With other groups they just haven't been around as long as the Italian mafia, so its not easy to follow their history, like you can with the mafia. They don't seem to have the characters like Luciano, Joe Adonis, Gambino, Genovese, Gotti, the Chin, Gaspipe Casso, etc.