Reading is a skill that once you’ve learned, you probably don’t spend much time trying to get better at. (Not all that different from, say, breathing.) And yet, many of us don’t have to look far to see signs that there’s plenty of room for improvement. We only read at the end of the day—and only for the three minutes between cracking open a book and falling asleep. We’re halfway through about nine books. And our bookshelves are littered with titles that we remember reading but don’t exactly remember anything about.