A Producer Guide, A Reference, A Notebook Covers 1.2.31 OS - Book Release 2 - 270 Pages - PDF Format ideal for smartphones, tablets and desktop - Covers all things OP-Z - Walkthroughs, Tips, Guides, Illustrations - Hyperlinked contents and pages for easy navigation - Fits a novice and advanced user. - Perfect OP-Z companion - Designed with your own notes in mind ...... all for the price of a cup of coffee