Is There a Lot of Philosophy That You Have No Idea About?

Even if you're a professional philosopher, there's going to be areas of philosophy you have no clue about. That's one of things i was really hoping to do, as well as give people a way to just survey the train, you now, lay of the lands. I mean, i guess they discipline, but maybe more interestingly, just philosophy itself. You know, what has been done, n what's being done.