An introduction to guitar riffs using major and minor pentatonic scales. Book 1 includes riffs using one-octave major pentatonic scales starting on the low E string (in the keys of G Major, D Major, A Major, E Major, F Major, C Major, and B Major), riffs using one-octave minor pentatonic scales starting on the low E string (in the keys of G minor, D minor, A minor, E minor, F minor, C minor, and B minor), riffs using one-octave major pentatonic scales starting on the A string (in the keys of C Major, G Major, D Major, A Major, B-Flat Major, F Major, and E Major), and riffs using one-octave minor pentatonic scales starting on the A string (in the keys of C minor, G minor, D minor, A minor, B minor, F minor, and E minor).