As a guitar teacher here in Raleigh, NC, I had spent a fair amount of time searching for a comprehensive, easy-to-read, user-friendly treatise on music theory written specifically for the guitar. Failing that, I wrote my own. I have tried to design a series on guitar music theory that is as much of a page-turner as possible, given the technical nature of the subject matter, using a narrative, story-telling approach. You'll find a variety of examples, exercises and worksheets to reinforce the concepts.
Volume One: The Big Picture lays the groundwork: scales, chords and the Great and Powerful Circle of Fifths. Meet the CAGED System: The 5 most important chords, as well as the 5 most important keys, on the guitar. - the composer