Signs, is characteristic of things that mark - it simple, obvious, easily identifiable images, graphics or text for the visual language of symbols, in addition to what is marked, instead of what, he also has to express meaning, emotion and action instructions and so on. Sign, as a special way the human visual contact, not only in social activities and production activities everywhere, and for the country, social groups and even the fundamental interests of individuals, more and show its most important unique function
