Kathrine Switzer's autobiographical Marathon Woman is a great read, it has a lot to answer for but I think about it a lot, it's shocking for how recently women have been 'allowed' to run long distances (I mean in my lifetime, and I'm in my early 40s).
I liked the one about the Mexican running people who live on chia seeds and syrupy beer and can run for about 400 miles without stopping
I think that's Born To Run, and the one about running with the Kenyans (called Running With The Kenyans) was fascinating too.
Still haven't finished Run: The something something mindful running one by Matt Fitzgerald but that was about running by feel and abandoning the Garmin from time to time