We spend our whole lives in one body and yet most of us have practically no idea how it works and what goes on inside it.

Want to know why the skin is the biggest organ?

Why our brains can see into the future?

Or why your eyes are back to front?

Packed full of facts, big numbers (such as the amount of microbes that make you) and small numbers (the size of those very tiny microbes) all in full-colour.

This non-fiction book, packed with wonder from the globally bestselling Bill Bryson is a head-to-toe tour of the most amazing thing about you - YOUR BODY!