According to China Book Classification. Any library in China is basically placed according to the China Book Classification.
From Marxism-Leninism, philosophy, politics and law, economics, Chinese education, literature, biography, geography, from A to K, these are generally classified as liberal arts (some libraries will classify K, that is, biographical history and geography as science).
Then from L to Z, it is generally classified as science, and Z is also a comprehensive category. If placed, they are all placed on the shelves from top to bottom and from left to right. Each book has a classification number and is placed in order.