I love reading non-fiction as a way to challenge myself to understand topics that stretch my understanding of the world around me. I love history and biographies and even novels that are “faction.”
This Summer I read “The Third Chimpanze” by Jared Diamond and since he’s my favorite history writer I of course loved it. If you haven’t read Diamond, though, I’d recommend starting with “Guns, Germs & Steel” & then “Collapse” but all three are worth reading.