/lit/ - Literature

what are the best books to learn music theory?
I have Schoenberg's Harmony on my list, but I think it'd be a good idea to have a good grasp at music theory before tackling him.
The first one that comes to mind is Laitz's Complete Musician, lots of people seem to think it is the best all-around book on the topic, though I've read it is, among other similar music textbooks, a bit soulless.
I know the very basics, intervals, modes, scales, chords, but I don't know how to put it all together in any practical use.
My main interest is in erudite music, though later I intend to study jazz too.
Suggestions?