Here are the thoughts and insights of van Eyck, Vasari, El Greco, Rubens, Hals, Rembrandt, Vermeer, Watteau, Hogarth, Goya, Corot, Manet, Degas, Cézanne, van Gogh, Matisse, Wyeth, Pollock, Johns, and a host of others. Selections, many translated here for the first time, include advice on technique from such masters as da Vinci, Dürer, and Renoir, and engrossing personal reflections for creating “Guernica,” and an explanation by Chagall of his symbolism.