Download or read book Visual Illusions Coloring Book written by Spyros Horemis and published by Courier Corporation. This book was released on 1973-01-01 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beware, the designs herein may boggle your mind and confound your eyes. Does the cube go in or out, is the line straight or curved? You'll have fun deciding while coloring them at the same time. 32 designs.