Meg Maguire is Professor of Sociology of Education in the Department of Education and Professional Studies at King�s College London, UK.Stephen J. Ball is the inaugural Karl Mannheim Professor of Sociology of Education in the Department of Educational Foundations and Policy Studies at the Institute of Education, University of London, UK.Annette Braun is a Research Officer in the Department of Educational Foundations and Policy Studies at the Institute of Education, University of London, UK.