Norm (based in Zurich, Switzerland), is an experimental graphic design team best known for their typography. Their most influential project is typography for Cologne Airport. It is co-founded by two Swiss designers Dimitri Bruni and Manuel Krebs. Their approach to typography is known to be very strict and rigorous with strong modernist features but with slight references to postmodernism. Some of their typefaces are Simple (designed independently and then adapted for the design of the Cologne Airport), Normetica, and Replica. Norm was featured in the 2005 documentary Helvetica directed by Gary Hustwit.