Rudolf Isler, born in 1952, is an author, education expert, former lecturer and President of the Senate of the Zurich University of Teacher Education. Prior to this, many years of practical experience as a secondary and middle school teacher. Publications on historical and current issues of pedagogy, general didactics and teaching professions; focus: promoting the self-efficacy of children and young people. Biography of Manès Sperber from a pedagogical perspective and author and director of the documentary film "Manès Sperber - ein treuer Ketzer".