What's underground?

This series is composed of information books for early readers.

It presents information in a way that even young children should understand and enjoy.

The series is grouped into three levels by interest and readability and at each level the list is further subdivided into smaller, topic-based series.Using scientific cross-sections combined with colour photographs a hidden, underground world is revealed.

The book shows children about the Earth's natural resources and the technology used to access them.

Readers discover: jewels and history buried beneath our feet; complex networks of underground tunnels made by animals; and trains that carry people under the sea.