Download or read book Walker Evans and the Picture Postcard written by Jeff Rosenheim and published by . This book was released on 2009 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sketchbook volume one of a two volume set documents the best of the optical illusions discovered and sketched in our CAD system. It is also attempts to define common visual attributes and categorize optical illusions by those features. The goal is give the reader new tools to help them better identify and classify optical illusions. These illusions are used by engineers, academics and artists to graphically depict their ideas and the world around them on flat surfaces.