Stefano Biagetti (Ph.D. University College London) is a consulting ethnoarchaeologist who has been involved in Saharan studies since 2002. He has been research fellow at the ‘Sapienza’University of Rome (until Dec. 2012), studying the development of pastoralism in the Sahara, from prehistory to current societies. He carried out ethnoarchaeological investigations among Tuareg from SW Libya. His ethnoarchaeological research is focused on the study of resilience in arid lands, and on the variability of pastoralism in marginal environments. He has published in major journals such as Nature, Journal of African Archaeology, Azania and African Archaeological Review. Francesca Lugli (D.E.A. Diplôme d’Etudes Approfondies, Université de Paris I, Sorbonne-Panthéon; Scuola di Specializzazione in Archeologia, Sapienza Università di Roma) is the president of the Italian Society for Ethnoarchaeology. She carried out several excavations in Italy and abroad, and directed ethnoarchaeological research projects in Italy, Tunisia and Australia, funded by the Italian Ministry of Education, the Italian Ministry of Agriculture, the Italian Ministry of Foreign Affairs, the Italian Institute for Africa and Asia (IsIAO). Currently, she is leading ethnoarchaeological investigations in Mongolia, funded by the Italian Ministry of Foreign Affairs, focused on modern nomads, their campsites, their land use strategies. and their intangible heritage. She edited six books on ethnoarchaeology and wrote more than sixty papers on international journals.