Peter Gutmann's book Engineering Security (PDF) is one of the best single books that I've found on the topic of information security. It collects all sorts of information that's both useful and interesting, and it seems to be the only place where this type of information is collected. If you read a chapter of this book, you're able to amaze and astound people with the fascinating information security knowledge that you have.
My memory's not as good as it used to be, so for me, this effect wears off after a couple of weeks. But for those couple of weeks, I look much smarter than I really am.
I don't know if this book has found a publisher yet, but it's definitely the sort of book that deserves to be printed.