The Archaeology of Knowledge is a treatise by Michel Foucault. Orginially published in France in 1969, the essay contains many ideas that have been built upon from his other works, such as Madness and Civilization. The main idea of the treatise is how thoughts are actually governed by unconscious rules which everyone has, but may be different in different individuals. The philosophical essay brings to life very complex ideas about the human thought process, many of which were very new to the time.
Michel Foucault, born in 1926, had a lifetime of ideas and influence. Known for his unique philosophy, most of his essays contain his thoughts on knowledge, like this one. He was raised in an upper middle-class family, which may be the reason why he had so much time to think about complex ideas, philosophizing instead of working.