well, there's a lot more ou there, theory, (a study so big that you will never learn absolutley everything about it) How to write songs, though it takes years of studying, the physics of the axe itself, different woods, different bodies, ect. Barre chords, and, I dunno, the list is endless, it goes on and on and on. Just try to learn something new every day, practice almost every day, so you wont lose interest, though everyone is different and all have verying levels of interest in it. Some people just like learning a few chords, some lose sleep studying it.