Guillaume Chauvet holds a PhD in statistics from the university of Rennes 2 (France) and the Habilitation à diriger des recherches. He is assistant research professor at ENSAI (France) and member of the IRMAR research team (UMR-6625). He is interested in the many aspects of survey statistics, including sampling methods, treatment of non-response, variance estimation, treatment of longitudinal survey data, and analysis of survey data. He is also interested in the application of survey methods in related fields, including epidemiology and forest inventories.