Interesting, in the way Malcolm Gladwell books are interesting, but very narrow in the way that an economist's point of view can be. Reading to your child or taking him to a museum may not raise his test scores in school, but it doesn't mean the activity is pointless -- which is what the authors imply. Still, full of interesting studies and cocktail party fodder (what crack dealers earn, "high end" vs "low end" baby names, etc.).