Here are a few of the past and present publications I have authored:

The Matrix
Exploration of the Guitar Fingerboard through Intervals

Musicians Desktop Reference
The Anatomy of Musical Composition and Form

The Harmonic Drum 
Insights into the Craft of Flamenco Guitar

Learning To Learn
A Guide for Teachers and Pupils

The Sonic Triangle
The relationship of Rhythm, Melody, and Harmony

Sound Bites
An Anthology of Melodic Motifs

Guitar Warrior
Eight Graded Guitar Workbooks 
(white, yellow, orange, purple, blue, green, brown, and black)

Toques Flamenco
A study of traditional Flamenco song forms

Foundations of Music Notation
A primer for music notation