Dean Rickles is associate professor of history and philosophy of science at the University of Sydney. He specialises in the history and philosophy of quantum gravity and has published extensively in this area. He has authored or edited several books including: The Structural Foundations of Quantum Gravity (coedited with S. French and J. Saatsi: Oxford University Press, 2006); Symmetry, Structure, and Spacetime (Elsevier, 2007); The Ashgate Companion to Contemporary Philosophy of Physics (Ashgate, 2008); and The Role of Gravitation in Physics: Report from the 1957 Chapel Hill Conference (Co-edited with Cecile DeWitt: Max Planck Research Library for the History and Development of Knowledge, 2011).