In this book， we list and introduce some interesting， important or useful mathematics books. Most selected books were published during the twentieth century. For the convenience of the reader， we have arranged books according to topics. Besides some introductions and comments， we also quote from informative reviews of these books from sources including MathSciNet， Zentralblatt Math and the Bulletin of the American Mathematica Society. A common way for people to pick out books to read is to follow recommendations of either book reviews or experts. The list of books is probably the most interesting part of this book， Once the titles or authors' names are known， it is relatively easy to find valuable information and reviews about the book from many different sources （but it might take some efforts to find good books on subjects outside one's expertise.） In spite of this， we hope that additional information provided here about these books might be helpful and convenient.
