Ask HN: What to read for three months in the woods?

I just graduated college, but before starting a programming job in the fall I'll be blissfully without electricity for a few months. I'd like to read some books to make me a better programmer while I have the time.

Books that require a computer to do exercises would probably be a wash. I will have paper and pencil.

What can I read that makes me think in new ways about programming, or will give me practical tools to work with in the future.