Yves Tillé is a Professor at the University of Neuchatel. Yves Tillé obtained a Ph. D. in statistics of the ``Université libre de Bruxelles’’ in 1992 were he was a teaching assistant from 1983 to 1996. In 1996, he obtained a position of ``Maître de conférences’’ at the ``Ecole Nationale de la Statistique et de l’Analyse de l’Information’’, in Rennes France where he worked with Jean-Claude Deville. In 2001, he was named full professor of statistics in the University of Neuchatel where he is also responsible of the Master in Statistics. He has developed an important relation with the Swiss federal statistical office. His research interests include survey sampling theory and applications. He is particularly specialized in algorithms of sampling, calibration, treatment of nonresponse, and bootstrap for sampling from finite populations. He is also interested in the measurement of inequality and poverty and in gender salary discrimination. He has authored numerous articles and books among other a book entitled ``Sampling Algoritms’’ published by Springer. He took part of the development of algorithms that are now used for very important statistical procedure as the new French census, the selection of samples for biodiversity monitoring in Switzerland.