The Post Impressionist painters were the first artists to be influenced by those radical Impressionists. They included Vincent Van Gogh, Paul Gauguin, Paul Seurat, Henri Rousseau, Toulouse Lautrec, and Paul Cezanne. 

Each artist took a small step away from the tenets of the original Impressionists, who advocated the direct observation of nature, and then each in turn inspired whole new movements of art in the 20th century.

Seurat - Sunday

Sunday Afternoon on the Isalnd of La Grande Jatte by Georges Seurat, 1885