What is semiotics?

Semiotics is basically the study of signs, it consist of a signifier and a signified. We take semiotic approaches in our everyday lives without realizing it. We follow unspoken rules of the road, at a stop sign we stop. A box of tissues could be considered the signifier, and it signifies a running nose or perhaps the flu. You could relate just about anything to the theory of semiotics. You could place semiotics is the category of philosophy. The idea be hide semiotics is constantly changing and is an opinioned based design.