Library introduction: Tsinghua University Library was founded in 1912. The building consists of two parts, the east and west parts, which are connected into one. The total building area is 28,000 square meters, with 2,000 reading seats. The library orders nearly 50,000 Chinese and foreign books every year. By the end of 2003, the library's collection of books and periodicals had reached more than 2.74 million volumes, forming a comprehensive collection of various types and carriers with natural sciences and engineering and technical scientific documents as the main body, as well as various types and carriers of humanities, social sciences and management science documents. system. The library implements open services. WWW and OPAC (collection catalog search) are available 24 hours a day. In 2003, it received 1.41 million readers, and the total annual loan volume of Chinese and foreign books was 1.14 million.