This document displays the 7 positions of over 50 scales in what I call "3-note-per-string - 1" or 3nps-1 system.  It's commonly referred to as the "Berkley system" or "7 position system".  Each page contains the necessary information to visualize any scale or pattern the player desires to make music with.  Scales include all modes of Major/minor, Harmonic major/minor, and Melodic Minor.  Also included is different types of Pentatonic scales with the Major/minor/composite Blues, Whole Tone, Chromatic, Augmented and Diminished scales.

Comprehensive Guitar Scale Guide