This book is intended for the beginner to advanced Jazz player and is divided into four chapters. Chapter 1 includes Major & Minor Pentatonic scale exercises. Chapter 2 includes Major & Minor Blues scale exercises. Chapter 3 includes Major & Minor 7th & 9th exercises. Chapter 4 includes Jazz improvisation exercises. It is very important for the improvising Jazz player to have a deep knowledge of Pentatonic and Blues scales in twelve keys in order to overcome the "fear" of soloing - improvisation. When you have completed this book, you will be able to improvise effortlessly in twelve keys and you will be ready for more pursuits in the magic world of Jazz solos and improvisation. Visit http: //www.argyrislazou.com for free access to online downloadable Backing tracks (Piano chords & Metronome) & Audio samples.