This book written by ground-breaking guitarist and composer Martin Vishnick comprises two volumes. Volume 1 presents a critique and exploration of the way extended techniques with particular sound properties are used and notated in the contemporary repertoire for the classical six-string guitar. In Volume 2, a set of practical exercises provide both instrumentalists and composers with a way to perceive, think through, and use a repertory of sounds based on developed and newly invented extended techniques. The scope of this book is unique book, as it covers pedagogy, performance and composition in one treatise.