Chad Johnson: Visual Guitar Theory: An Easy Guide to Recognizing and Understanding Essential Fretboard Patterns

Guitar Theory For Dummies with Online Practice

Vaideology: Basic Music Theory for Guitar Players | Guitar Instruction by Steve Vai | Includes Practical Exercises, Scales, and Diagrams | Full-Color Guitar Educational Songbook

The Practical Guide to Modern Music Theory for Guitarists: The complete guide to music theory from a guitarist's point of view (Learn Guitar Theory and Technique)

Sight Reading Mastery for Guitar: Unlimited Reading and Rhythm Exercises in All Keys (Learn guitar theory and technique)