As I’m always looking for good books on architecture, I found an interesting list of books, posted at Amazon:
10 best architecture books but not your usual suspects

Be sure to check out this list, too:
Architecture & Design

One more list, that seems interesting:
Ten Books Every Architecture Student Should Own

Me, personally I would recommend to anyone “Pattern language”, “Timeless way of building” of Christopher Alexander. I’m planning a nice book-shopping over the next weeks 🙂