I recall, though my recollection may be faulty, a magnificent article by Giorgio Manganelli explaining how a sophisticated reader can know whether a book is worth reading even before he opens it. He wasn’t referring to the capacity often required of a professional reader, or a keen and discerning reader, to judge from an opening line, from two pages glanced at random, from the index, or often from the bibliography, whether or not a book is worth reading. This, I say, is simply experience. No, Manganelli was talking about a kind of illumination, a gift that he was evidently and paradoxically claiming to have.
How to Talk About Books You Haven’t Read, by Pierre Bayard, a psychoanalyst and professor of literature, is not about how you might know not to read a book but how you can happily talk about a book you haven’t read, even to your students, even when it’s a book of extraordinary importance. His calculation is scientific. Good libraries hold several millions of books: even if we read a book a day, we would read only 365 a year, around 3,600 in ten years, and between the ages of ten and eighty we’ll have read only 25,200. A trifle. On the other hand, any Italian who’s had a good secondary education knows perfectly well that they can participate in a discussion, let’s say, on Matteo Bandello, Francesco Guicciardini, Matteo Boiardo, on the tragedies of Vittorio Alfieri, or on Ippolito Nievo’s Confessions of an Italian, knowing only the name and something about the critical context, but without ever having read a word.