The document discusses the evolution of e-books and reading habits. It notes that e-books have advantages over printed books in terms of storage and portability but that screens are poor for reading. Current e-book readers like the Kindle and Nook represent the second generation but are still inferior to printed books for leisure reading. The document predicts that a third generation of hybrid e-book readers will provide added benefits like video, sound and interactive content, making them more comparable to printed books.