Niklas Luhmann, born in 1927, studied law at the University of Freiburg and received his doctorate. It is considered one of the leading pioneers of the Sociological Systems Theory, whose innovative proposal contrasted with that of Talcott Parsons, the most renowned theorist on the subject during the 60s, who was a student at Harvard University. He held various positions at the Universities of Münster, Frankfurt and finally in Bielefeld, where he remained until his retirement in 1993. His prolific work as a writer of such diverse subjects as law, economics, politics, art, ecology, mass media, continued even after this date to seal with his most important work: "Die Gesellschaft der Gesellschaft "(The Society of society) appeared in 1997.