Title: The Ultimate Book of Optical Illusions, Author: Al Seckel
Title: Magic Eye Gallery: A Showing of 88 Images, Author: Cheri Smith
Title: Puzzle Baron's Picture Puzzles: 100 all-color puzzles for everyone, Author: Puzzle Baron
Title: Optical Illusions: The Science of Visual Perception / Edition 3, Author: Al Seckel
Title: Seeing, second edition: The Computational Approach to Biological Vision / Edition 2, Author: John P. Frisby
Title: Cloud Doodles: Find and Doodle the Objects in the Clouds, Author: Ro Ledesma
Title: Mighty Optical Illusions: More Than 200 Images to Fascinate, Confuse, Intrigue, and Amaze, Author: Steven Estep
Title: Folk Illusions: Children, Folklore, and Sciences of Perception, Author: K. Brandon Barker
Title: Startling Stereograms, Author: Gene Levine