"Thorough studies such as this are relatively rare in the northern Peruvian coast archaeological literature. This pioneering work is the first English-language excavation monograph detailing the material culture of the Casma polity."--Jonathan D. Kent, Metropolitan State College, Denver Melissa Vogel's Frontier Life in Ancient Peru offers a new perspective on ancient Peruvian life and geopolitics during a pivotal period of Andean cultural transformation between AD 900 and AD 1300. Focusing on the frontier site of Cerro la Cruz in the Chao Valley (located on the northern border of the Casma polity), this volume richly details the role of cross-cutting social networks and the dynamics of shifting political boundaries in prehistoric north coast Peru. The rise of the Chimú Empire caused the Chao Valley to become a border zone between the Casma and their encroaching neighbors. The artifacts recovered from sites in this area paint an illuminating picture of the everyday lives of ancient Andean people in this unique yet--until recently--under-studied culture. Vogel's systematic and comprehensive volume synthesizes information about the societies in this region while also expanding and clarifying the definition of Casma-style ceramics and architecture for comparison with other sites. As the first English-language work on the Casma polity, this is a powerful new resource for understanding an important pre-Inca culture as well as a fascinating investigation of the forces at work in the development and collapse of complex societies.