Encyclopedias

World Book's excellent editorial content, rich media, and interactive features in Spanish for young learners.

A collection of electronic reference books covering many subject areas. Download PDF chapters to your computer or mobile device.

Find information about prehistoric and classical mythology as well as more contemporary myths from literature and popular culture.

An online version of the Marshall Cavendish International Wildlife Encyclopedia. Find information about species from every branch of the animal family.

A powerful reference tool designed for high school students and adults.

Designed for students reading below grade-level, adult students developing their reading skills or students learning English. Features basic, accessible encyclopedia articles on a variety of topics.

Engaging content, features, and tools developed especially for young students. Search for articles or click the pictures to explore.

A mainstay to meet the research needs of students in primary/elementary and middle school with thousands of articles and multimedia.

Hundreds of customizable, interactive timelines of important events throughout history.