"Into the Wild" by Jon Krakauer
The title couldn't be any more clear as to what this 1996 classic is about, but the story inside is a harrowing, ultimately tragic tale the likes of which you probably won't find anywhere else.
Christopher McCandless gave it all up: talking with his family, his college funds, and a great future. He hitchhiked to Alaska with nothing but 10 pounds of rice, a rifle, several boxes of rifle rounds, a camera, and a guide to edible plants. He died after more than a hundred days of surviving in the wild, and with a deft hand, Krakauer brilliantly put together the hows, whys, and events that unfolded up to that point in this dizzying work that you won't be able to put down. [$11, amazon.com]