Kai Bernau (Letterlabor) is a German type designer (b. 1978) who studied graphic design at the University of Applied Sciences Schwäbisch Gmünd. He created “The neutral typeface” (2005), a sans family, as his thesis project at the KABK in Den Haag. The typeface was born as a mathematical average of ten sans typefaces: AG Buch, Neue Helvetica, Univers, Grotesque, Franklin Gothic, Frutiger, Trade Gothic, Documenta Sans, The Sans and Syntax. He graduated there in 2006 with a masters degree. Together with his wife Susana Carvalho, they formed Atelier Carvalho Bernau, a practice that designs printed matter (mainly books), bespoke and retail typefaces, and identity programs.