Hi I just got a faculty position and it comes with a generous start up funds for "office supplies", which I must use or lose. What does a pure mathematician need? I have good computers already. I decided to use the money to build a small library in my office. I'm a number theorist. Specifically I'm in analytic number theory. But I like all kinds of number theory and want to learn more of the subject, so I want a fairly well rounded library. The catch is that when it comes to reading, I am attracted to explicit / classical language, rather than abstract / very modern. Please suggest a list of good books for my library.