This encyclopedia highlights more than 40 Olympic sports. Alongside both historic and recent photographs, readers will learn about the basics of each competition, its origin, how it has changed throughout the years, and the icons in each sport. In addition, this book provides information about the Paralympics. Features include a glossary, additional resources, and an index. Aligned to Common Core Standards and correlated to state standards. Abdo Reference is an imprint of Abdo Publishing, a division of ABDO.