A very detailed exposition of important jazz, rock, blues, country, pop, folk, classical, chords but yet of simple chord shapes is given in this book. Triad chords and their substitutes in Moveable, Open and Bar shapes are well treated. Then applications of these chords such as, to play guitar by ear only without sheet music is clearly explained plus the topic of chord substitution. With the comprehensive chord charts and tables plus a basic study illustration of the guitar fretboard added in this book; the guitarist reader will inevitably become a chord master within a short time.