Hacking the CAGED System: Book 2

Woodshedder's Guide to Guitar Scales

Simple Chord Tone Soloing System

The Dorian Improvisation System

No Theory Guitar Soloing

Fourths Tuning: Modes

25 Guitar Scale Hacks

Guitar Hacks: The Memory-Friendly Chord Book

8 String Guitar: Scales and Arpeggios

Simple Blues Soloing System

Intermediate Guitar Scales Handbook

Intermediate Guitar Scales Handbook: Exotic Scales Edition

Guitar Hacks: 3NPS Scales

Guitar Hacks: The Pentatonics Handbook

184 Open Chords You Never Knew Existed

Melodic Soloing in 10 Days

The 2 Position Guitar Scale System: Scales and Arpeggios