I'm definitely a bibliophile & enjoy collecting interesting books of all kinds. I usually read non-fiction books, because I prefer information over stories.
For the past several months, on my lunch breaks I've been reading through an entire reference book that's full of random knowledge. I got it for $10 at a used book shop.
QPB Dictionary of Ideas is exactly what it says- a dictionary full of philosophical concepts, important people in history, and all kinds of information relevant to the thinking man or woman.