Professor Müller received his 'Staatsexamen' in English, Romance Languages, Philosophy, and Educational Science from Düsseldorf University in 1979, his PhD in English, Romance Languages and Philosophy from the University of Bonn in 1983, and a postdoctoral degree in English from the University of Düsseldorf in 1995. He was employed at and taught in the English Department of Düsseldorf University from 1980 to 1994, then at the University of Chemnitz until 1998. During that time he also stood in for the Professor of English in the English Department of Humboldt University Berlin in 1995-6 and for the Professor of British Studies in the English Department of Dresden University from 1996-7. In 1998 he took up a permanent position in the English Department of the University of Stuttgart. In 2001 he was offered the Professorship of British Studies and Translation Studies at the Johannes Gutenberg University of Mainz, a post he has held since 2002.