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…

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…

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…

Throughout history, there have been those whose extraordinary ideas have shaped today's world. Essential Lives offers access to these incredible individuals and their stories. With these…

Throughout history, there have been those whose extraordinary ideas have shaped today's world. Essential Lives offers access to these incredible individuals and their stories. With these…

Essential Pets looks at topics surrounding the animals that live in people's homes around the world. Readers will discover the history of these pets, how people care for and feed them,…

Earth is full of extreme environments. From soaring mountain peaks to arid deserts to rain-soaked jungles, nature's extremes are both admired and used to test people's limits in surviving…