Meet SIGIL—the new language of guitar. Guitarists who want to improvise and compose, from novice to advanced, will find SIGIL works like a decoder ring for the guitar, yet it's simple enough to keep in one's head.

Visualize the whole fretboard. Gain portable knowledge of modes, scales, and intervals without wall charts. This is guitar study re-engineered for every level.

Create more interesting solos. Break through your lull or stall. Decrypt the instrument and unleash your play. The authors are a seasoned musician with albums under his belt and a lively storyteller who walk you through the toolset with eye-opening and sometimes hilarious examples.