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Help
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, withing 24 hours on weekdays.
Customer service
All questions about your order, return and delivery must be sent to our customer service team by e-mail at yourstore@yourdomain.com
Sale & Press
If you are interested in selling our products, need more information about our brand or wish to make a collaboration, please contact us at press@yourdomain.com
A psychologist and collector, Block has put his life's work, his enthusiasm, and his knowledge into this treasure trove of puzzles, illusions, and double diversions. Each page is guaranteed to surprise and delight, while celebrating the amazing flexibility and creativity of the human mind. and mindbending illustrations that trick the eye into seeing two different imagesand never both at the same time. Double illusions, upsidedowns, ambiguous images and ambigrams are smartly organized by technique and illusory effect, with vivid descriptions of the psychological impact of each image as well as current scientific explanations for each stunning effect.Psychologist and collector J. Richard Block has put his life's work, his enthusiasm, and his knowledge into this wonderfully fun, informative treasure trove of classic and contemporary puzzles, illusions and double diversions.
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⚠️ California Proposition 65 Warning: Some products sold on this website may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
