The per capita library is 0.29 books. Xi 'an, referred to as "Gao", was called Chang 'an and Haojing in ancient times. With a per capita collection standard of 0.29 volumes, Xi Town-level Library is the capital of Shaanxi Province, a sub-provincial city, a megacity, a core city of Guanzhong Plain urban agglomeration, and an important central city in western China determined by the State Council.