Galileo was an Italian astronomer who lived about 400 years ago. He is famous for inventing the telescope and using it to discover moons around Jupiter, and that our own moon has craters, and for getting in trouble for saying that the Earth goes around the Sun. (Now we now know he was right, but back then it was a dangerous idea.) This book mixes drawings, the story of his life, and little bits from Galileo’s own notebooks, so you can read his very own words. Which are sometimes scribbled in cursive on the pages and pictures, so you might need to use Galileo’s telescope to decode them. Such a useful invention!