The only painter to exhibit in all eight Impressionist exhibitions organized between 1874 and 1886, Camille Pissarro became a pivotal artist and mentor within the movement. While the Impressionists are known for their depictions of city streets and country leisure, Pissarro covered his canvases with images of the day-to-day life of French peasants. His greatest work joins his fascination with rural subject matter with the empirical study of nature under different conditions of light and atmosphere, deriving from intense study of French Realism. Like those of his Impressionist cohorts, his paintings are delicate studies of the effect of light on color in nature. However, he continually sought out younger, progressive artists as colleagues, and his articulation of scientific color theory in his later work would prove indispensable for the following generation of avant-garde painters.