0(Guitar Educational). This book for both acoustic and electric guitarists is designed to be a handy guide to the two most important components of playing: chords and scales. More than just a reference, it will also help you understand how chords and scales are created, named and used, and how they are related to each other. Includes over 1,400 chord diagrams; major, minor, pentatonic, blues and diminished scales; and modes. Teaches how to understand intervals and build major, minor, augmented, diminished and extended chords.