by Peter Vogl is a complete scale encyclopedia for guitar with over 400 scales and modes. It contains scale diagrams with notation and tablature for each scale and tips on how and when to use each scale. Our ScaleFinder System, using icons and letters, makes scale finding easy. It also contains outside jazz scales, exotic scales, Peter's own Cross- Stringing scales, and easy to understand explanation of scales and modes. This is the only scale book you'll ever need.