One of the things I liked about my favourite Italian restaurant in Sydney is the fact that they put there pizza plates on the wall. So if you ask the waiters how large the small pizza is they just turn around and point to the plates hanging on the wall. Situations like the one I just described always remind me that in a lot of cases information can be represented much more effectively by using images instead of text. Since strong images convey information in a universal language which everybody understands immediately.