Camille Pissarro (1830-1903) was not only a central figure in the Impressionist movement but a major influence on the development of modern art. He was the only artist to exhibit at all eight of the Impressionist exhibitions between 1874 and 1886, and his letters are a fascinating and invaluable source of information on the theoretical aspects and practical implications of Impressionism. Pissarro's career touched that of an extraordinary number...