From Gustavo Politis, one of the most renowned South American archaeologists, comes the first in-depth study in English of the last “undiscovered” people of the Amazon. His work is groundbreaking and urgent, both because of encroaching guerrilla violence that makes Nukak existence perilously fragile, and because his work with the Nukak represented one of the last opportunities to conduct research with hunter-gatherers using contemporary methodological and the theoretical tools. Through a rich and comprehensive ethno-archaeological portrait of material culture “in the making,” this work makes methodological and conceptual advances in the interpretation of hunter-gather societies. Politis’s conclusions, based on six years of original research and on comparative analysis, are integrative and contribute to the identification of the multiple factors involved in the formation of hunter-gatherer archaeological assemblages.