Purism is the aesthetic approach that was advocated and practiced by the architect Charles-Edouard Jeanneret (later called Le Corbusier) and Amédée Ozenfant. Jeanneret and Ozenfant first described the principles of Purism in 1918 in a small book entitled Après le cubisme (After Cubism). They sought to eliminate the picturesque, decorative aspects of Cubism that had become prevalent in painting after 1914 in favor of an art that stressed mathematical order, purity, and logic. To achieve this sense of fundamental order they systematized their expression of visual phenomena into a precise arrangement of modern, impersonal, “universal” forms, especially images of simple machine-made objects from everyday life. Jeanneret and Ozenfant shared with Fernand Léger an enthusiasm for the beauty of the machine aesthetic and precisely delineated forms, but they went even further in reducing such elements to a simplified geometry and combining them to produce compositions of unruffled harmony. Purism’s movement away from the radical vocabulary of the preceding decade can be seen as part of a pervasive desire for a “return to order” after World War I and the consequent widespread neoclassical tendency among European artists of the period.