The first monograph dedicated to Marc du Plantier (1901-1975), allows the reader to redeciscover one of the major decorators of the 20th century. Marc du Plantier began his career in 1928. From his earliest projects he began to implement his architectural vocabulary, characterized by precision of line, working with color, indirect light and the interplay of mirrors. His art reached its apogee in the rue du Belvédère, where Anne and Marc du Plantier welcomed the Parissmart set of the 1930s. This was followed by the apartment overlooking the Bay of Alger, considered to be one of the high points of interior decoration of its time, the palaces in Madrid where, from 1938 to 1949, he developed a remarkable form of neoclassicism, his Parisian apartments of the 1950s, and the drawing room of the French embassy in Ottawa. In the 1960s, the disappearance of private commissions drove the designer to settle in Mexico, where he founded the Artedecor Company, and then in Los Angeles, before returning to Paris via the Orient. His contact with American Pop Art inspired the work he developed in 1968, creating models with new materials edited by the Lacloche gallery and for the dining room of Maurice Rheims, still hewing to the precision of his classical aesthetic. Text in French.