The Mesa couple have again proven their most valuable worth to the study of Bolivian history. It is important that someone depart from political history, and write about Bolivia’s rich cultural history. The Mesas are doing it and they are doing it with excellence. This slim monograph is loaded with new information. The master of the arts, Martín de Oviedo, born in Spain around 1565 but active in Upper Peru (and other areas of Spanish America), is sketched. His influence on Potosí art of the early seventeenth century is detailed. The Mesas believe that the Potosí church of Nuestra Señora de Copacabana from the late sixteenth and early seventeenth centuries is one of the finest relics of colonial art in all of America. Martín de Oviedo had much to do with the architecture and the sculpture of this church. Indeed a fine study.