I think people like it because it was seminal, and just about every other pop psychology book references it. That said, the material is better presented elsewhere. A great book that I enjoyed is: http://www.amazon.com/Makes-Brain-Happy-Should-Opposite/dp/1...

The forthcoming book from the same author, What Makes Your Brain Happy and Why You Should Do the Opposite (which is what led to the submitted article), also looks practical for HN readers.

http://www.amazon.com/Makes-Brain-Happy-Should-Opposite/dp/1...