Bernhard Poerksen Bernhard Poerksen, *1969, is professor of media studies at the University of Tübingen, Germany. His research projects analyse the styles of impression and image management in politics and the media, he regularly contributes comments on current affars and debates to newspapers, radio, and television. The book he wrote in 1998 with the physicist Heinz von Foerster about the truth in perception (Truth is the Invention of a Liar) became a bestseller and is now considered a classic of systemic thought. In 2008 Bernhard Poerksen was honoured for the quality of his teaching and chosen "Professor of the Year". Read More Read Less