I seriously don't see how this is gonna help you study. You'll get so wrapped up in this manga you wish you'd never begun reading it, because you'll never want to put it away once you start. This is THE ALL-TIME BEST manga out there. Well, at least it's good that you have come closer to it and will begin reading it. There is a total of 33 volumes at the moment, but I can't say how many there are in the US stores, I just don't know since I live in Sweden