It all started with curiosity. When curious people started thinking: what are things made of?

Are there things you can't see inside the things you can?

This book will tell you how people have been discovering the smallest pieces that all things are made of, everything we see in the Universe:

Stars
Planets
Trees
Fleas
Elephants
Spiders
Mountains
You

This book will tell you the incredible story of the discovery of the invisible.