“Reading a book was a meditative act, but it didn’t involve a clearing of the mind. It involved a filling, or replenishing, of the mind. Readers disengaged their attention from the outward flow of passing stimuli in order to engage it more deeply with an inward flow of words, ideas, and emotions. That was—and is—the essence of the unique mental process of deep reading. It was the technology of the book that made this “strange anomaly” in our psychological history possible. The brain of the book reader was more than a literate brain. It was a literary brain.”