Emil Ruder. Ein Tag mit RonchampEinsiedeln: Johannes Verlag, 1958

“Ronchamp, the book on Le Corbusier's chapel is a highlight of modern typography. Free of the heaviness of the Bauhaus, it is in a new typography which was so fresh and new compared to the typography of that time.”

Helmut Schmid (ed.). Ruder typography, Ruder philosophy. Zürich: Lars Müller, 2017 (p. 90)