The Theory developed by Roland Barthes is the study of the social production of meaning from sign systems; the analysis of anything that can stand for something else.
Semiology concerned with anything that can stand for something else. It is the study of signs or significantion. A sign is the combination of its signified and signifier. . A Sign Does Not Stand on Its Own It Is Part of a System.
In semiotics, a sign is anything that stands in for something other than itself. This lesson focuses primarily on linguistic signs.This theory is frequently used in advertising to signify the message include traffic signs, emojis, and emoticons used in electronic communication, and logos and brands used by international corporations to sell us things “brand loyalty,” they call it.
Thus, Semiotics is the study of signs and symbols, in particular as they communicate things spoken and unspoken. Common signs that are understood globally include traffic signs, emojis, and corporate logos.