I've studied it since I was little. Being an Italian, I've always been interested in all aspects of the culture, bad or good. With that interest, I've ALWAYS been fascinated by the Mafia, even though the majority of them are Sicilian, there's still northern Italians scattered throughout. The fact that my people came to this country for better lives, and got dogged out by the government and other Americans...especially Irish Americans, and they STILL rose above it, building multi-million dollar businesses (legal and not), is simply off the hook. Not a lot of people can say that about their ancestors. So, I've always read about it, always watched movies/documentaries, followed John Gotti, learned about the Bonanno family since they were local at one point, and I'm pretty sure one of the daughters was my elementary school principal...lol.
So yea, in a way I guess you can say I'm familiar with it.