Paul Cézanne's landscapes from this period, such…

Paul Cézanne's landscapes from this period, such as The Sea at L'Estaque (1878-79; Picasso Museum, Paris), contain compositions of grand and calm horizontals in which the even up-and-down strokes create a clean prismatic effect and an implacable blue sea spreads wide across the canvases.

These paintings have the exciting and radically new quality of simultaneously representing deep space and flat design.