Puzzling Optical Illusions - book
Type: Optical Illusion
Dimensions: 8 1/4 in x 5 1/4 in x 1/8 in / 21 cm x 13.2 cm x 0.4 cm
Authors: Thomas Crawford
ISBN: 0486401510
EAN: 9780486401515
A rich assortment of visual mind-bogglers, including "impossible objects" -- constructions that look fine on paper but can't possibly exist in reality -- as well as pulsating patterns, vanishing spots, more. 60 illustrations.