(back cover) Want to know how a jet engine works? Or how an airplane stays in the air? Or what the pilot does to control the plane?s speed and direction? If you?re looking for answers to these questions, this book is definitely for you! Most pages feature several flaps that you can lift to explore the insides of different airplanes. In some illustrations you?ll find flaps beneath flaps, so you can really delve deeply into a plane?s inner workings. Easy-to-read text and kid-friendly, colorful illustrations make this book a perfect guide to help you understand how planes work. TITLES IN THIS EXCITING SERIES How it Works: Car How it Works: Plane.