This book offers a series of studies focused on the analysis of stone tool technology of the Folsom Culture, bison-hunting inhabitants of the North American prairie grasslands during the terminal Pleistocene. Recent work on Folsom lithic assemblages has revealed considerable complexity in the factors that generated similarities and differences in Folsom chipped stone economy, beyond simply the manufacturing sequence and technique of fluting Folsom projectile points. The analyses presented here use comparative methods to identify patterns of lithic assemblage structure and variation that provide insights into the organization of Folsom technology and lifeways, considering multiple aspects of Folsom technology including: tool manufacture and reduction system modeling, studies of raw material variation, use-wear, technological variation in weaponry assemblages, and the organization of technology. They thus contribute substantially to a growing understanding of the patterns and processes in Folsom technology and the causes of diversity within Folsom lithic assemblages.