Peter Lynn is Professor of Survey Methodology and Director of the Institute for Social and Economic Research (ISER), University of Essex. ISER is one of the leading research centres in the world for longitudinal survey methods and Professor Lynn has headed the survey methods programme at ISER since he joined Essex in 2001. Professor Lynn has published more than 60 articles on survey methods topics in top scientific journals, mostly on topics specific to longitudinal surveys, in addition to numerous book chapters, reports and other articles.