Blink
I liked Outliers so much that I had to read Malcolm Gladwell's other book - Blink. The book is about intuitions, hunches or our unconscious self, how they help us in making better decisions - better than a more thoughtful process and how the mind can adapt and develop these hunches through experience and learning.
An interesting book, not as good as Outliers though. He makes his argument in the first couple of chapters, reiterates the point through different stories (as in Outliers), but the stories are not as interesting. One of the chapters that talks about how different facial expressions could be analyzed to figure out individuals actual emotions is just a bit too detailed and long. It wasn't that bad though and I would still love to read his best-seller "The Tipping Point".