Thrillers (NOT the Michael Jackson Variety)

Here's Reader's Digest's list of the top thrillers of all time. I don't agree with all of it (for instance, although I like Crichton generally I found The Andromeda Strain to be a little boring), but it is interestingly divided into different categories, such as Spy Thriller and Classic Thriller. One thriller I think lives up to its reputation: In Cold Blood. Disturbing little story. Anyway, the list is definitely worth a look. I'd be interested to hear any suggestions as to what the editors missed.