"Sure to be a hit for the math geek in your life." -- GeekDad.com "This is by far the most entertaining math book Ive seen in a long time. Want to show someone what math is about? Tell them to forget everything theyve read. Then, hand them this book and a box of 100 crayons, and leave them alone for an hour. Theres no way youll get your copy back. Amazing!" -- Adrián Paenza, bestselling math author and winner of the International Congress of Mathematicians Leelavati Award "My six-year-old and I are both loving the mathy new coloring book Visions of the Universe." -- Jordan Ellenberg, PhD, author of How Not to Be Wrong "Delightful, informative, and fun!" -- Steven Strogatz, author of The Joy of x "I love this new math coloring book! I want the Menger slice as a Christmas ornament." -- Manil Suri, UMBC professor of math and bestselling author of The Death of Vishnu "Beautiful . . . Alex and Edmund have smuggled some of the best mathematical stories into this visual feast. By engaging the reader in their journey, the authors show how mathematics isnt a spectator sport. Math comes alive when you make it yourself." -- Marcus du Sautoy, Simonyi Professor for the Public Understanding of Science, University of Oxford