The second floor is a flat building. What's the main barrel on the first floor? You can't export books unless you import them.

On the third floor, there is a lending area for Chinese books and periodicals, and a reading room for Taiwan, Hong Kong and Macao literature and books.

The fourth floor is the reference book reading room of the Reference Department, the foreign language lending area of the United Nations depository area, the Stilwell reading room, the Chongqing local literature reading room and the Anti-Japanese War literature reading room.

The fifth floor is full of those books.

I mainly talked about the distribution of the third and fourth floors in detail. Anyway, I think the third floor is quite miscellaneous, and there are all kinds of books. You can have a look. There are reference books on the fourth floor. You can also have a look.