num_pages: 96
description: A collection of wacky characters and expertly created optical illusions will fascinate youngsters as gray spots appear and disappear, straight lines wave, circles gyrate, and intricate patterns pulsate
language: English
title: Great Book of Optical Illusions
titlecomplete: Great Book of Optical Illusions
genres: Nonfiction, Reference
ratings_count: 33
publisher: Sterling Pub Co Inc