In 1983, Müller published his first book and, as Lars Müller Publishers, has produced some 600 titles to date.
Lars Müller is a passionate educator and has taught at various universities in Switzerland and in Europe. In 2019, he taught as the Regents’ Professor at UCLA. Müller frequently serves on academic and competition juries. From 2009 to 2015 he was a member of the jury of Design Preis Schweiz and from 2013 to 2015 the international president of AGI Alliance Graphique Internationale.