From the reviews of the second edition:P. Petersen Riemannian Geometry ""A nice introduction to Riemannian geometry, containing basic theory as well as several advanced topics."" -EUROPEAN MATHEMATICAL SOCIETY ""This is an introduction to modern methods in Riemannian geometry containing interesting and original approaches to many areas in this field. ... After a general introduction (metrics, curvature, geodesics) and concrete calculations for many examples, the second half of the book considers Bochner-Cartan techniques and comparison geometry. Particularly for these aspects it continues to play an outstanding role among textbooks in Riemannian geometry."" (M. Kunzinger, Monatshefte fur Mathematik, Vol. 154 (1), May, 2008)