What kind of aircraft can fly up and downand even land on the tops of city buildings? Is it faster to cross an ocean by airplane or ship? Do more people travel around town on a bicycle or in a car? Descriptions and illustrations of fast trains, whirring helicopters, and many other exciting forms of transportation are sure to wow your early reader!With two-page colorful illustrations, World Books Learning Ladders series is for young learners with a primary reading level of grades K-2 looking to learn the basics about nature, science, and their communities. Each nonfiction book was created for children to learn about topics theyre most curious about. Each book in the 10-volume series features colorful illustrations, fun facts, and easy to understand sentences. Words in bold type help early readers build vocabulary skills.