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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 treat for the eye as well as the mind, these beautifully designed and intellectually stimulating challenges were created by one of the world's most innovative puzzle makers. Ivan Moscovich presents eightyfive intriguing visual puzzles, each sprinkled with fascinating popular science facts.Suitable for puzzle lovers of all ages, this collection features classic challenges attributed to important mathematicians and philosophers: Galileo's Pendulum, Cantor's Comb, Aristotle's Wheel Paradox, and enigmas based on the work of Fibonacci, Foucault, Rott, Sierpinski, and other thinkers. Playful puzzles include Hotel Infinity, Tower Power, Lost Marbles, and Walking Dogs. For the hopelessly perplexed, complete solutions appear at the end.
⚠️ WARNING (California Proposition 65):
This product may contain chemicals known to the State of California to cause cancer,
birth defects, or other reproductive harm.
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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.