"We believe there are unwanted books in many households. Instead of letting them sit unread, why not exchange them and share them? This not only promotes environmental friendliness but also gives secondhand books new readers, allowing others to learn from them," says Du Yuchen, deputy head of the publicity department of Xicheng district.

The secondhand book zone has around 200 booths. Well-known book vendors like the China Bookstore and the Beijing Publishing Group are among the participants. The China Bookstore alone has around 10,000 books on display in two booths.