This is not too
surprising, since the growth of e-books is most likely to
impact sales of mass - market paperbacks, as MMPs are the least expensive print offering, their release is delayed after hardcovers (as some publishers do with e-books), and most closely filled the role that e-books are starting to fill for people: day - to - day fiction reading, as opposed to hardcover cookbooks,
graphic books, or bookshelf display items.