The Robotx are two small robots - RobbO and RobbEE - who spend their days exploring the technology of simple machines - and creating their own. Playful text and funny illustrations support… More →

The history of human activity in the Rocky Mountain range is as colorful as its scenic natural wonders. It has been witness to the decimation of Native peoples, the westward expansion of… More →

This informative book describes how the Muslim religion started, including the life of the Prophet Muhammad; the Hegira and Kaaba; caliphs; the split of the Sunni and Shi'a and the beliefs of More →

The Princess was sad. Nobody could cheer her up. Then two naughty monkeys came to the palace…Teacher's guide available. More →

This fascinating book describes the geological makeup and history of the Sahara Desert in North Africa. The biggest hot desert on Earth, it covers parts of twelve countries - more area than… More →

In 1692, two young girls in Salem, Massachusetts, were diagnosed by the local doctor as being bewitched. Hysteria over witchcraft reached a fever pitch leading the Puritan townsfolk to accuse More →

The Science of Catastrophe series looks at the world of disasters from a scientific point of view. Each book takes thirteen examples, explaining what happened and the science involved in each More →

The Science of Computers takes an overall look at information technology, exploring how computers operate and the amazing devices that are used in homes, schools, and businesses today.… More →

This engaging book describes the properties of light waves, how they move, and the way our eyes receive them. Readers will learn that we see an object when light reflects from its surface and More →

What do our bodies need to function healthily? This important new series provides the answers. Each title explores the purpose of a particular nutrient and explains why our bodies need it,… More →