Rulers sat at the top of the social hierarchy during the Middle Ages. These leaders held great power, controlling land, labor, and the military. Some waged wars to expand their kingdoms, while others supported art and exploration. Rulers in the Middle Ages explores various medieval kings and queens, highlighting their influence and role in society. 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.