Louis Hayet was initially involved with neo-impressionism, painting in the pointallist manner, but after 1890 returned to a post-impressionist technique.
Louis Hayet was born in Pontoise (a northwestern suburb of Paris) in 1940. He was in the main self-taught but studied for a while at the École des Arts Décoratifs. He spent the last years of his career conducting scientific research on colour and pigments.