The Ultimate How It Works Encyclopedia

Discover the wonders of the human body, the world of animal life, oceans and more with this exciting, full-color illustrated encyclopedia.

This detailed young reader’s encyclopedia features simple explanations about complex systems ranging from the technological to the scientific. Enjoy 8 educational segments in one volume, including:

- The World of Animal Life
- The Environment
- The Human Body
- Exploring the Oceans
- The World of Plant Life
- Discovering Prehistory
- Discovering the Universe
- The World of Insect Life

An ideal reference for young readers.