Career
Schulz von Thun worked as a professor of psychology at the University of Hamburg until his retirement on 30 September 2009. Among his various publications is a three-part book series titled "Miteinander Reden" (Talking With Each Other) which has become a standard textbook series in Germany and is widely taught in schools, universities, and vocational skills training. Schulz von Thun developed a number of comprehensive theoretical models to help people understand the determinants and processes of inter-personal exchange and their embeddedness in the individual inner states and the outward situation.
He invented the four sides model.
