Erqi Square-Wenhai Book Fair
Zhongshan Square-Book Building (the largest Xinhua Bookstore in Dalian)
There are many small bookstores in Black Rock Reef, and many big bookstores don't sell books, so you need to find them yourself.
Agree with what the sixth floor said. People's cultural literacy does not depend on how many books you have and how many books you have read. On the second floor, why did you come to Dalian when you made Dalian sound so ugly? Presumably, you can't get along with anything. You're already addicted there.