Picasso was perhaps the greatest innovator of twentieth-century art. The power of Picasso’s invention, however, was deeply influenced by sources from across the art historical spectrum. Chief among these was African art. Drawing upon myriad stylistic resources, Picasso created new modes of expression. The development of this multifaceted artistry is illustrated in several works featured in Picasso: Masterpieces from the Musée National Picasso, Paris at the de Young through October 9.