Learn all about the history and accomplishments of the people around you! Do you know the fastest mode of transportation? What language is spoken in the most countries in the world? Who invented the vacuum cleaner? Now you can learn all about how humans have changed and grown throughout history in Humanity: The Illustrated Geography of Our World . Learn fascinating facts and figures about: Population growth Megacities Power sources The internet Recycling And more! Through colorful graphics and illustrations, your child will learn all about the people and the world around them in Humanity: The Illustrated Geography of Our World .