In their book “Freakonomics,” Stephen J. Dubner and Steven D. Levitt write that kids who grow up in houses packed with books fare better on school tests than those who grow up with fewer books. But they also contend that reading aloud to children and limiting their TV time has no correlation with success on tests. If both of these observations hold, it’s worth determining what books really are, the better to decisively decorate with them. The widespread digitization of text has complicated the matter. Will Ben benefit if I load my Kindle with hundreds of books that he can’t see? Or does he need the spectacle of hard- and softcover dust magnets eliminating floor space in our small apartment to get the full “Freakonomics” effect? I sadly suspect he needs the shelves and dust.

¶ 10:08 AM