Through-Hiking Will Break Your Heart by Carrot Quinn
I'm a sucker for thru-hiking journals. This one is from a women that did the Pacific Crest Trail. She made it to the end, barely. It's really a journal of suffering; of sore feet, of being cold or hot, or wet, or hungry, or thirsty, or tired, or disillusioned, or lost. Not that she doesn't find enjoyment along the way, because she does. I suspect a lot of other hiking writers gloss over the bad parts. Carrot didn't do that.