'This superb and spirited modern introduction to Einstein's theory of gravitation covers all of the essential topics with admirable clarity. A penetrating discussion of the basic concepts of the theory is followed by a wonderfully lucid development of the mathematical formalism using modern differential geometry. Ample illustrations and problems enhance and complement the text; moreover, a generous list of references is provided at the end of each chapter for further reading. This scholarly yet accessible textbook is highly recommended for a course on general relativity.' Bahram Mashhoon, University of Missouri