Kirill Krasnov is Professor of Mathematical Physics at the University of Nottingham. Since receiving his Ph.D. from Pennsylvania State University, he has worked at the University of California, Santa Barbara, and the Max Planck Institute for Gravitational Physics in Potsdam.
'The work is mathematically rigorous and complete. Researchers working in fields such as quantum gravity will find this a very useful reference. Postgraduate students will also find it a helpful adjunct to the usual books on general relativity.' A. Spero, Choice