Book number and date number. When borrowing books from the library, there is always a clear book number and date number, so it may involve the book number and date number. Sichuan Normal University, referred to as "Sichuan Normal University", is located in Chengdu, the capital of Sichuan Province. It is one of the first batch of key universities in the "Central and Western Universities Basic Capacity Building Project", and it is the earliest and longest-running provincial key university in Sichuan Province.