The Princeton University Art Museum's collection of Spanish drawings includes masterworks by artists such as Jusepe de Ribera (1591-1652), Bartolom Esteban Murillo (1617-1682), Francisco Goya (1746-1828), Pablo Picasso (1881-1973), and Salvador Dal (1904-1989). Although many of the drawings in the collection relate to celebrated paintings, commissions, and other works by these artists, they remain largely unknown. Most have not been published...