Essential Library of Countries explores the nations of the world from many different angles, including geography, plant and animal life, history, culture, politics, the economy, and daily…

The nations of Earth form a complex and diverse tapestry. From the rocky terrain of New Zealand's volcanic islands to Spain's historic architecture, and from the arid Kalahari Desert…

Essential Library of Cultural History explores the popular mediums we interact with on a daily basis and how they have shaped history. Aligned to Common Core Standards and correlated to…

Essential Library of Inventions explores the history, social context, and legacy of key history-changing inventions with compelling text, well-chosen historical images, and helpful…

In our recent history, employers could fire people for being gay, women were expected to quit their jobs when they became pregnant, and those who use wheelchairs were not guaranteed access to

Essential Library of the Civil War explores the deadliest conflict in US history from many angles. Each subject is covered with gripping narrative text, historic photographs, primary sources,

The way we think about information has changed dramatically in recent years. Data flows across the planet at the speed of light via the Internet, and people establish whole new identities…

This series provides junior high and high school readers with comprehensive explorations of each branch of the US armed forces. Each book covers a branch's history, its current missions and…

Essential Library of World War I explores the most fascinating aspects of the twentieth-century's first major conflict. Each subject is comprehensively covered, with compelling narrative…

Essential Library of World War II explores the most fascinating aspects of history's largest conflict. Each subject is comprehensively covered, with compelling narrative text, well-chosen…

Essential Literary Genres invites readers to analyze elements and characteristics common in genres. Each book in the series features four analysis papers that consider a book's genre. The…

"Essential Literary Themes analyzes recurring themes in culture and literature. Each book in the series features four analysis papers that consider the book's theme. The analysis papers each…