Panjiayuan flea market 1:
Every Saturday and Sunday, the southernmost street in the market here is full of old books, comic books and the like, and the prices are very low. On one occasion, I bought four books on computers (each with a price of about 30, with supporting CDs), and it only took 25 yuan to complete them. There are quite a whole series of books and magazines, many of which are out of date but nobody reads them at all.
2. Ai Jia International Collectibles Market:
Dazhong Temple in the North Third Ring Road: There are many small shops selling used books in the north area on the second floor here.
3. South Third Ring Road Minute Temple Classical Furniture Market:
There are many stalls selling used books on the second and third floors. You can go and have a look.
4. Liulichang
Shops on both sides of the street also sell them.