Description In Referees and Umpires, beginning readers will learn what referees and umpires do and how they enforce rules and keep sports fair. Carefully leveled text and action-packed photos show how referees and umpires in different sports do their job. . . A comprehensive On the Job back matter feature highlights the career's main duties. Children can learn more about sports officials and sports careers online using our safe search engine that provides relevant, age-appropriate websites. Referees and Umpires also features reading tips for teachers and parents, photo labels, a picture glossary, a table of contents, and an index. . . Referees and Umpires is part of Jump!'s Beyond the Players series.