Books thread

Books thread.
Post your favourite text books.

I'll start.
K&R is a classic programming book. It's very well written and very concise.
Probably the best book for a programmer to learn C.

>>10
I don't know what Stallman says but Amazon is shit: https://www.eff.org/deeplinks/2010/12/amazon-and-wikileaks-first-amendment-only-strong