Catherine Taine-Cheikh is Emeritus Research Director at the National Center for Scientific Research (CNRS-France). Before joining the CNRS in 1996, she worked as a researcher at the Mauritanian Institute for Scientific Research (IMRS-Mauritania) for 16 years between 1978 and 1994. She had published two dictionaries on Hassaniya Arabic (Mauritanian) and two dictionaries on Zenaga Berber (Mauritanian) and had written more than 140 articles or book chapters on the Arabic and Berber languages and culture of Western Sahara. Her areas of interest include: general, comparative and typological linguistics, language contact and change, anthropological linguistics, Arabic and Berber languages. In 2006, she obtained the accreditation to supervise research (HDR) from the Sorbonne Nouvelle-Paris III University, entitled “Saharan and Berber Arabic. Dynamics of languages and language practices", and in 1978, from the René Descartes-Paris V University, entitled "Middle Arabic spoken by Mauritanian Arabs". He obtained his doctorate in linguistics.