In this book, Eisenhart succinctly surveys the key concepts of
Riemannian geometry. He begins with tensor analysis, including the
Riemann curvature tensor, the Christoffel symbols, and the Ricci tensor.
From here the notion of a metric is introduced, and hence geodesics,
parallel displacement, and the Bianchi identity are explored. Other
topics include orthogonal ennuples, the geometry of subspaces, subspaces
of a flat space, and groups of motions. This clear and concise guide to
Riemannian geometry will be of great interest to mathematicians and
theoretical physicists alike.