The international best-seller that makes mathematics a thrilling exploration In twelve dreams, Robert, a boy who hates math, meets a Number Devil, who leads him

"Twelve-year-old Robert fears numbers and hates maths. Then, in his dreams, he meets the Number Devil and is introduced to the amazing world of numbers: infinit

2011 Retailers Choice Award winner! Rebecca never felt safe as a child. In 1969, her father, Robert Nichols, moved to Sellerstown, North Carolina, to serve as a

"A triumphantly moving book." —Kirkus Reviews, starred review Hannah dreads going to her family's Passover Seder—she's tired of hearing her relatives talk a

This witty introduction to number theory deals with the properties of numbers and numbers as abstract concepts. Topics include primes, divisibility, quadratic f