Paul Cézanne was a French painter known for his unique approach to color and form. He played a crucial role in the transition from 19th-century Impressionism to 20th-century modern art. Cézanne's work often focused on still lifes, landscapes, and portraits, where he used geometric shapes to build his compositions, giving them a sense of structure and depth. His famous paintings, like The Card Players and Mont Sainte-Victoire, showcase his innovative use of brushstrokes and color palettes. Cézanne's influence can be seen in the works of later artists, making him a key figure in the development of modern art.