Studies the sociology of data specifically in relation to how different kinds of data and methods organize and constitute populations as objects of knowledge and governing. Has undertaken research on how different forms of data - from government censuses, administrative databases and surveys to everyday digital transactions and interactions- organize and make possible particular ways of knowing and governing populations. PI, five-year European Research Council funded project, Peopling Europe: How data make a people (ARITHMUS; 2014-19). Founding and Editor-in-Chief, Big Data & Society: Critical Interdisciplinary Inquiries, a SAGE open access journal launched in June 2014. Co-Author, Being Digital Citizens (2015); Co-Editor, Modes of Knowing (2016).