Peter Paul Prinz has been working mainly as an advertising artist. From 1946, he did illustrations for Kinderpost, and from 1948, he was one of the artists for Wunderwelt magazine. He signed most of his work with ABC. Besides many illustrations, Prinz has made the comic series 'Willibald der Zauberlehrling', that has appeared on the magazine's back pages from 1948 to 1961. The character briefly returned to Wunderwelt in 1966 and 1971-72. After his retirement, Prinz took on painting.