I am writing because I am intriqued by the Chinese characters on the front cover of your book Riemannian Manifolds: An Introduction to Curvature. I saw it on Amazon.com, but the image is too blury for me to read. Can you translate them for me?
I think it's the title of the book. That image is from the Chinese edition; but if you order from Amazon.com you'll get the US edition. (Springer contracts with publishers in China to produce inexpensive reproductions of some of its books, in the hope that some people will buy them instead of buying pirated copies.) When I first saw that edition, I asked a Chinese friend what it said, and I'm pretty sure he said it was just the title.
John M Lee, Professor of Mathematics
University of Washington Mathematics Department, Box 354350
Seattle, WA 98195-4350