Studied German and English literature at the University of Zurich, devoting his doctoral work to Arno Schmidt’s works (1914-1979). From 1987 to 1995, he was a Director of the Robert Walser Archive in Zurich. Together with Bernhard Echte, he read and edited Robert Walser’s famous micrograms, which were later published as Aus dem Bleistiftgebiet (six volumes, 1985-2000). He is an author of articles and essays devoted to the work of the Swiss writer. In 2009, he published his book, entitled Robert Walser in Bern. Auf den Spuren eines Stadtnomaden (2009).