Winner, PROSE Award, Biological Anthropology, Ancient History, & Archaeology, Association of American Publishers (AAP), 2018 Inka khipus--spun and plied cords that record information through intricate patterns of knots and colors--constitute the only available primary sources on the Inka empire not mediated by the hands, minds, and motives of the conquering Europeans. As such, they offer direct insight into the worldview of the Inka--a...