Les insolences du Frère Untel is a book first published in Montreal by Les Éditions de l'Homme in 1960. In a very short time it sold more than 100,000 copies, in a society where a book with a 10,000 copy print run was considered a best seller. The anonymous author was Jean-Paul Desbiens, a Marist Brother, who attacked the church-controlled education system in Quebec. The book had an important impact on the Quiet Revolution in Quebec and on the educational reforms that eventually shaped the present Quebec education system.