Semiotics: study of communication through signs and symbols, both individual and grouped into signs systems. Includes study of construction and how understood.
3 types of a sign:
An Icon, Index, Symbol
Icon - physical resemblance to the object/concept. (photo, maps)
Index - direct link between the sign and the object/concept. (hand gestures, symptoms, clues)
Symbol - learned and agreed upon, between the sign and the object/concept. (language, alphabets, trademarks) can be learned.
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