Third floor, Hangtou Stack Room, Shanghai Library. Shanghai Library has three stacks outside the library, namely Hangtou Stack on the 3rd floor, Longwu Road Preservation Stack on the 4th floor and Xinzhuang Special Stack on the 5th floor, which are closed to the public. If you need books, you can register and make an appointment at the general cashier's desk. Longwu Road keeps this library: it is received every Tuesday and Friday.