Lizzie Marrkilyi Ellis is a Ngaatjatjarra educator, interpreter and linguist from the Western Desert. She is currently an Australian Research Council Discover Indigenous Fellow at the Australian National University where she is working on a project documenting Western Desert speech styles and changing modes of communication across generations. Laurent Dousset is Professor of Anthropology at the EHESS (Advanced School for the Social Sciences, France) and Director of the CREDO (Centre for Research and Documentation on Oceania). He has been doing fieldwork in the Western Desert for more than twenty years and has published numerous scientific papers and several books.