Gives you some perspectives about civilizations and history
The former one is about how western and eastern civilization (before and during pre-historical period) rises up and takes over each other as the most influential civilizations. The latter is about why most civilization started from Asia and Europe but not like Australia, the Americas and Africa.
Guns, Germs and Steel is such a really, really, really bad book
It doesn't offer a single source for anything it says, and almost anything it says of any significance is demonstrably incorrect: https://www.bitchute.com/video/qvaxPH3ftUQ/
And seriously, think about how absurd the premise of this book is: Environmental differences in different parts of the world are large enough to explain why grand civilizations flourished in Europe and Asia but Australia and Sub-saharan Africa didn't progress beyond hunter gatherer societies....but these differences weren't large enough to result in ANY differences in selective pressures between these places other than for skin color etc.