Return from the stars by Stanislaw Lem. Paperback published by Mandarin 1990. (This book was originally published in 1961)
Chapter 3, page 79.
"I spent the afternoon in a bookstore. There were no books in it. None had been printed for nearly half a century. And how I had looked forward to them, after the microfilms that made up the library of the Prometheus! No such luck. No longer was it possible to browse among shelves, to weigh volumes in the hand, to feel their heft, the promise of ponderous reading. The bookstore resembled, instead, an electronic laboratory. The books were crystals with recorded contents. They could be read with the aid of an opton, which was similar to a book but had only one page between the covers. At a touch, successive pages of the text appeared on it. But optons were little used, the sales-robot told me. The public preferred lectons—lectons read out loud, they could be set to any voice, tempo, and modulation. Only scientific publications having a very limited distribution were still printed, on a plastic imitation paper. Thus all my purchases fitted into one pocket, though there must have been almost three hundred titles. A handful of crystal corn—my books. I selected a number of works on history and sociology, a few on statistics and demography, and what the girl from Adapt had recommended on psychology. A couple of the larger mathematical textbooks—larger, of course, in the sense of their content, not of their physical size. The robot that served me was itself an encyclopedia, in that—as it told me—it was linked directly, through electronic catalogues, to templates of every book on Earth. As a rule, a bookstore had only single “copies” of books, and when someone needed a particular book, the content of the work was recorded in a crystal."