Sign language is a visual language system that uses body movements and gestures to communicate. Many deaf and hard-of-hearing people worldwide use it. Sign Language explores the history of sign language, how it works, and different sign languages used around the world today. Easy-to-read text, vivid images, and helpful back matter give readers a clear look at this subject. Features include a table of contents, infographics, a glossary, additional resources, and an index. Aligned to Common Core Standards and correlated to state standards. Core Library is an imprint of Abdo Publishing, a division of ABDO.