This reading gave a detailed definition of what a sign is and what makes something a sign. A sign consists of the signifier (STOP sign) and the signified (driver who stops their car). If a sign is not obeyed than it is basically not a sign. I think. Signs can also be broken down into three categories Iconic sign, which resembles the signified for example a map. Indexical sign, correlates to the signified(Check Mark>>Good Job/Finished). Symbolic sign, abstracts the signified, the flag of a country.
My examples of the three types of symbols are as follows:
Iconic:
Indexical:
Symbolic: