Keith Kay Books

Classic Optical Illusions
Colorful Puzzles for Wise Eyes
Colorful Puzzles for Wise Eyes

By Keith Kay

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A Little Giant Book
A Little Giant Book

By Keith Kay

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The giant book of optical puzzles
The giant book of optical puzzles

By Keith Kay

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Optical illusions trick your mind and confound your perception, and that's why these images--including three-dimensional mazes--will drive you crazy in the best of ways. Stare at a circular checker...

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Take a closer look!
Take a closer look!

By Keith Kay

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Take a a closer look!
Take a a closer look!

By Keith Kay

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Take a a closer look!
Take a a closer look!

By Keith Kay

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Fun with Optical Illusions
Fun with Optical Illusions

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Fun with Optical Illusions Mini Masters
Brainstrains
Brainstrains

By Keith Kay

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