Polly Wiessner is a Professor of Anthropology at Arizona State University and the University of Utah. Over the past forty years, she has conducted ongoing research among the !Kung (Ju/'hoansi) Bushmen of the Kalahari Desert on social networks, demography, economy and firelit stories. For the past thirty-four years, she has carried out ethnohistorical studies of oral traditions among the Enga of highland Papua New Guinea (PNG), tracing developments in warfare, ritual, conflict resolution and exchange over the past 400 years. She is currently studying the breakdown of traditional cultural institutions with the introduction of new technology, modern myths and how the Enga are applying restorative justice based to rebuild communities and maintain harmony through restorative justice.