Tom, I left the following comment (twice), but it doesn't look like it's showing up on the site. ------------------------ Nice blog and list. The five of these that I've read have been excellent sources of information and inspiration. It looks like there's still room for at least one more, so I'd consider adding this one: To the Edge: A Man, Death Valley, and the Mystery of Endurance, by Kirk Johnson I'd read it before watching Running on the Sun. ------------------------