Tianan Yungu is the largest complex project in Bantian at present, with a total area of about 760,000 square meters and a total construction area of about 2.89 million square meters. A library is an institution that collects, sorts out and collects books and materials for people to read and refer to. As early as 3000 BC, libraries appeared, which have the functions of preserving human cultural heritage and developing information resources.