If you want to find old books and back issues, let's go around Zhongshan Park.
Chengtong Cultural Market once existed, at No.5 Yihe North Street, tianqiao district, east of the intersection of Tianqiao North Head and East-West Feng Dan Street, near Jinan Glasses Market.
It is best to go to Zhongshan Park after wholesale.
It is best to go to these places on weekends, and the rest of the time is not lively enough.