Octatonic Scales is a comprehensive guide to 40 deifferent octatonic (8 - note) scales for guitar, written by the author and guitarist Vladimir Stanic! The book covers the 8 - Tone Spanish Scale and it's eight modes, the Major Bebop Scale and it's eight modes, the Dorian Bebop Scale and it's eight modes and the Locrian Bebop Natural Second Scale and it's eight modes.