People around the world have used language for thousands of years. Archaeologists and historians study artifacts to learn about ancient forms of spoken, written, and signed languages. The Evolution of Language explores how these languages evolved over time and shaped the ways people communicate 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.