If symbols can make a difference in how society is constructed, it stands to reason that, if people want to change society, one way to do it would be in the realm of culture, the realm of signs and symbols.
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Finally, we live in a culture that has become increasingly aware (maybe too aware) of the ironies of images, the ways in which images and symbols can sometimes provide different, sometimes conflicting, meanings.
View this online lecture about anti-ads and postmodernism. Post another comment by midnight, June 18th.