"The Science of Discworld" is not just a DW novel; it actually is more about our world (called: Roundworld for it's peculiar shape), and it's history (literally, that is: from the Big Bag). The book alternates between short chapters featuring the Wizards of Unseen University, and longer chapters with 'serious' information.

The book has an popular-scientific approach to the history of Earth, explaining quite difficult topics in a way that is accessible to anyone.