Ces, Paris, 1924
Originally published in 1923, this is the Second Revised Edition of 1924. 
243pp. 
With many illustrations in black and white. 
Consists of seven essays which originally appeared in the periodical L'Esprit Nouveau beginning in 1921. 
An early manifesto of sorts, repudiating prevailing design modes, in favor of what would come to be called the emerging International Style, of which Corbu would be a major leading figure.