Alex Bellos holds a degree in mathematics and philosophy from Oxford University. His bestselling books, Here's Looking at Euclid and The Grapes of Math, have been translated into more than 20 languages and were both shortlisted for the Royal Society Science Book prize. His puzzle books include Can You Solve My Problems?, Puzzle Ninja, Perilous Problems for Puzzle Lovers, and The Language Lover's Puzzle Book. He is also the coauthor of the mathematical coloring books Patterns of the Universe and Visions of the Universe. He has launched an elliptical pool table, LOOP. He writes a puzzle blog for The Guardian, and he won the Association of British Science Writers award for best science blog in 2016. He lives in London.
Edmund Harriss is a mathematician, artist, and assistant professor at the University of Arkansas. He is the discoverer of the Harriss spiral and the creator of the construction toy Curvahedra. He is the coauthor of Hello Numbers, What Can You Do? and the coauthor and illustrator of two mathematical coloring books: Patterns of the Universe and Visions of the Universe. He lives in Fayetteville, Arkansas.
