I imagine that a lot of us enjoy reading books about climbing and mountaineering. I also imagine that a lot of us enjoy reading books about other adventure-type activities. What are some good ones (either mountaineering or other) that are less well known yet still good?
For example, I just finished reading Silent World by Jacques Cousteau (about the early days of the aqualung and SCUBA) and thought it was fantastic, yet I'd never heard of it before a week ago (though it seems to be better known than I thought since it is a Nat Geo Adventure Classic...).
What else ya got?