'Another terrific book by Rob Eastaway' SIMON SINGH'A delightfully accessible guide to how to play with numbers' HANNAH FRYHow many cats are there in the world?
The Top 10 Sunday Times BestsellerNOW A MAJOR MOTION PICTUREOscar Nominated For Best Picture and Best Adapted ScreenplaySet amid the civil rights movement, the never-before-told true story of NASA's African-American female mathematicians who played a crucial role in America's space program.
