Billions, Trillions, Quadrillions helps readers understand large numbers by relating them to everyday situations. It's hard to imagine what a crowd of one billion people would look like--but if one billion children stood on each other's shoulders, they would reach past the moon! Simple explanations, accompanied by amusing infographics, help readers to visualize large numbers and get a handle on math. So take a journey through the world of numbers--from zero to infinity--and find out how we use numbers and how math shapes our world.