Billions, Trillions, Quadrillions helps readers to 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.