Book excerpt: This exhaustive study of scales is a must-own for any improvising guitarist. Published in collaboration with one of America's leading guitar schools, it provides the practical information you need to use each scale in a solo. With each scale, you get an explanation of the scale and its uses, a fingering on one string, six-string fingerings in all keys in a cycle of fourths, three-note per string fingerings, and a chord vamp to practice the scale over. Give your playing a unique edge with exotic scales from all over the world. This easy-to-use book even includes a section on how to practice scales. The Ultimate Guitar Scale Bible should be part of every guitarist's library.