Discover the answers to all the questions you've ever wanted to ask about the natural world, history, space and more! Which is the fastest car? Why do planes have wings? Can trains float? Learn the answers to these questions and more in this fascinating question-and-answer book all about transport, I Wonder Why: Planes Have Wings. Accessible and entertaining text makes learning about transport and mechanics fun, and information is presented in bite-sized nuggets, making it ideal for reading aloud. Bright illustrations by illustrator Josy Bloggs bring the various vehicles to life. This is the ideal book for budding engineers and fans of boats, planes, cars and more!