Let's not forget Donald E. Knuth series:
The Art of Computer Programming[
^]
If you really want to get into this stuff, these are the classics that thoroughly introduce you to the subject.
I think they are interesting, but certainly not something you can digest in a day or two, or even a year or two. They get better as the years go by - and that can't be said about just any book :)
Anyway - buy them - and put them in the bookshelf in your office, they tend to impress people :)
Regards
Espen Harlinn