"Content previously published in Optical illusions in 2012, Mind benders in 2013, and Color illusions in 2014"--Title page verso.

In this mind-bending book, each puzzle is framed as a question that prompts young readers to look for or do something specific and even includes an explanation of how the illusion works, so kids won't be confused for too long.-- Source other than Library of Congress.

[Table of contents]. What is an illusion? -- 2-D or not 2-D? -- Learn your lines -- Sizing it up -- Moving pictures -- Do you see? -- Are you bright enough? -- Double take -- That's impossible -- Mind benders -- Think outside the box -- A-maze-ing paths -- Are you in the loop? -- Wordplay -- Seeing is believing -- Mad math -- Defying gravity -- Body benders -- Do try this at home -- Answers -- Color vision -- After images -- Color effects -- Color in context -- Why is color useful? -- Who's who? -- Now you see me ... -- Did you know? -- Colorless.