“Bellos has added a classic to the genre of math and logic puzzles. . . . Written with cohesive themes, clever content, and a studied awareness for enriching the reader's mind, this book is highly recommended to anyone who enjoys the experience of an aha! moment.”—Math Horizons, the Mathematical Association of America
“Think of the best storyteller you know and the coolest teacher you ever had, and now you’ve got some idea of what Alex Bellos is like.”
—Steven Strogatz, author of The Joy of x