Post-impressionism
Paul Cezanne was friendly with Claude Monet and the other Impressionist painters, and used to show his paintings in the Impressionist exhibitions. But after a time, his style became quite different to theirs. He began to paint the landscape in planes of colour. (A plane is a flat surface). His ideas about constructing things in pictures out of planes of colour influenced other artists like Pablo Picasso and Georges Braque to paint pictures in a style called Cubism.