BOOKS.....While the TV bombards you with a sensorial experience, showing facts as they really were (or as imagined / mentally constructed by the director), books offer a conceptual description of beings and their universe. While reading we "process" the written information, so that it becomes intelligible, and so that we can relate to the characters and situations they experience. Thus, we are forced, or "invited", to perform a much more complex reasoning and mental constructions. We are, so to speak, exercising our brain while reading.