Abstract weird hill. Book, irrespective of the medium, should provide information in an ordered fashion. Printing words and pictures on paper was one of the many ways to express what the book author wanted to say in the times when screens were not invented. The purpose of books was to communicate a thought, philosophy or a concept. If that can be done using technology without harming any trees, sign me up. Books are books, irrespective of the medium they are delivered on.