Trucks are tools on wheels. They bring us the things we need and can carry the heaviest of loads. This encyclopedia gives readers a look at trucks, from their earliest versions to the working trucks of today to the trucks of the future. 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.