"Behind Closed Doors: Secrets of Great Management" by Johanna Rothman and Esther Derby is a strange book; while not having any ideas that are really NEW to anyone who's read the other management books I've recommended, BCD still manages to impress and be worth reading. It does this by having lots of small, practical advice for managers, in lots and lots of different areas.
If you read the other books in the field, will you derive most of these ideas yourself? Probably. But I still got a few good techniques from this book -- among them, a new approach to what BCD calls my "Project Portfolio" -- my lists of projects, tasks, and who they're assigned to.
Worth reading. Not worth reading first, but worth the time and money spent on it.