Here is a rough outline of potential expansions:
The Guitar Grimoire is unique because it forces you to think about the guitar logically, like a piano player might. By providing maps of the fretboard for every conceivable scale and chord, it eliminates the mystery of theory.
: This is the DVD's first lesson and a cornerstone of the book's approach. It would explain the numerical system used to describe notes within a scale (the 1st, 2nd, 3rd, 4th, etc.). This system is the foundation for understanding how chords are built and how they relate to each other.