There seems to be a lot of interest in programming books with over 700 questions on Stack Overflow. So how about some non-programming computer books? In this case, what is your favourites book on computer security?
It can be from either the breaking in side, showing how someone can break in; or it can be from the defense side, teaching good security practice like strong password etc. It doesn't even have to be all technical, historical accounts like The Cuckoo's Egg, or fictional books like Stealing the Network series are all acceptable. :-)