Tara Fenwick is Professor of Professional Education in the School of Education at the University of Stirling, UK. She was previously Head of Educational Studies at the University of British Columbia, Canada. The director of ProPEL, an international network researching professional practice, education and learning, she has a particular interest in professionals' knowledge sources and strategies, and the changing nature of professional responsibility. Richard Edwards is Professor of Education and Head of the School of Education at the University of Stirling, and previously spent 12 years as a lecturer, senior lecturer and reader with the Open University. He has written extensively on adult education and lifelong learning.   Tara Fenwick and Richard Edwards are the authors of Actor-Network Theory in Education (2010) and, with Peter Sawchuk, of Emerging Approaches to Educational Research: Tracing the Sociomaterial (2011).