Dirk Schulz started working with Robert Feldhoff in 1988. Together, they created the series 'Indigo'. Schulz graduated in Grafik Design in 1992. Since 1990, Schulz has been making monthly one-pagers in several car magazines. In 1994, he began a collaboration with Delia Wüllner, with whom he started the ironic fantasy trilogy 'Parasiten'. In 1996, Schulz and Feldhoff started the fantasy satire 'Chiq & Chloe', in addition to working on the series 'Indigo'. In 2002, he began the series 'Celtis' in cooperation with Jean Wacquet at Carlsen.