Several years back Joel posted a list of books for the "Fog Creek Software Managment Training Program." Which of those books have you found most useful? I'm looking for recommendations on where to start.
A little more detail about me to help with the answers. I have been programming for quite a while now. It's been mostly lower-level stuff. I'm looking for books that will make me a better manager and/or help me understand the business side of the industry.