The sociologist Heinrich Popitz, who passed away in 2002, is considered one of the most significant post-war sociologists in Germany. His works on industrial sociology from the 1950s have already attained classic status, and the importance of the writings he developed in the following decades on power, norms, technology, and creativity theory has increasingly been recognized in recent times. Popitz was a master of the short form, developing his ideas in subtle scientific essays. This volume brings together Popitz's most important writings on norm theory, which have previously only been available in scattered form, alongside previously unpublished texts. A comprehensive introduction provides insight into Popitz's thinking.