What put the book over the top? I can only guess it was the enemy of weak servers everywhere, the one and only Instalanche. Glenn, Helen and I had a fun chat and it's well worth listening to. I was reminded how well my thesis and that of An Army of Davids dovetail. Buy them both!
In non-fiction, it's Number 5:
Reed Hastings ("Belongs on your shelf between Tipping Point and Freakonomics") was more right than he knew.