Exact Space-Times in Einstein's General Relativity (Cambridge Monographs on Mathematical Physics)
"This is a resource monograph well balanced between a pedagogical scientific text and a review of current research on the subject. It should be standing undoubtedly, next to the "Exact solution book", on the bookshelf of both graduate students and academic researchers working on general relativity."Theophanes Grammenos, Mathematical Reviews"... tell[s] of the achievements of a generation of theorists whose only instruments were, for a good part of their lives, a pad of paper and a few pencils."Massimo Giovannini, CERN Courier