Inquire about official website. Peking University Library, one of the earliest modern new libraries in China, was approved by the State Council as the first batch of national key ancient books protection units. The institutional authorization code of Peking University Library can be found in official website and Peking University Library. The vision of Peking University Library is to build a world-class, high-level, modern and digital network literature resource guarantee and service system in Peking University, which is rich in resources and advanced in facilities, providing literature information guarantee for school teaching and scientific research, and serving the establishment of a world-class university.