Dave Shaul got his Ph.D. at Berkeley in Linguistics and Anthropology. He is a recognized expert in Uto-Aztecan languages (he speaks two of them). His recent work has focused on the deep prehistory of the American Southwest, northern Mexico, as well as central and southern California. He has written recent definitive books on Uto-Aztecan (2014), Esselen (2019), Salinan (2020a), and Tanoan (2020b), as well as a huge anthology of Uto-Aztecan literatures (2020c). His work at CSO explores the deep prehistory of the California coast (Bay Area to the tip of Baja). in particular the Hokan hypothesis and the Pacific Rim Linguistic Area hypothesis.