Think of Richard Nixon or Jimmy Carter or Billy Graham, or even Albert Einstein, and what will come to your mind is an image, a picture of face, (in Einstein's case, a photograph of a face). Of words, nothing will come to mind. This is the difference between thinking in a word-centered culture and thinking in an image-centered culture.
Neil Postman, Amusing Ourselves to Death: Public Discourse in the Age of Show Business
culture, image-centered-culture, typographic-mind, word-centered-culture