Beginning in the "heroic" period of the 1920s, Le Corbusier presented his work to the world in his lectures: in Paris and Rome, Geneva and Zurich, Barcelona and Brussels, Prague and Moscow, Buenos Aires and Rio de Janeiro, as well as at Columbia University in New York. In this volume, the numerous excerpts, preliminary notes, accompanying drawings, and photographs that Le Corbusier produced in connection with his lectures are presented and...