We have all heard that saying, "A picture is worth a thousand words". However cliche it may be, it's true. A picture has the ability to sum up, in one snapshot, what it takes an author to do in a five page synopsis. Visual rhetoric is extremely useful in modern society, because 93% of communication is nonverbal (or visual). We have subconsciously learned to master the art of reading other people's cues and body language, that it comes second nature to us (and this goes way back to when we were young and we always chose the picture books, as opposed to the books that we perceived to be small dictionaries.)