Planes carry people and items around the world. They are used by the military, by the postal service, and for fun! This encyclopedia gives readers a look into the history of planes, from the first flight to military machines to futuristic fliers. Features include a helpful introduction to the topic, a glossary, additional resources, and an index. Aligned to Common Core Standards and correlated to state standards. Early Encyclopedias is an imprint of Abdo Reference, a division of ABDO.