A French-language art monograph devoted to Henri Matisse, this volume presents the painter as a central figure of modern art and examines the development of his visual language across key phases of his career. The title situates Matisse within the series *Maîtres d'hier et d'aujourd'hui*, which profiles major artists through accessible scholarly writing, reproductions, and contextual commentary. The book addresses Matisse's use of color, line, interior scenes, portraiture, and decorative composition, offering readers a focused introduction to the formal concerns that made his work influential in twentieth-century art. It is suitable for general readers, students, and art enthusiasts seeking a concise but substantive overview of Matisse's achievements, rather than a narrow exhibition checklist or technical manual.