A huge volume of ancient Chinese books, formally owned by a Japanese business group, has been brought back to China. And Peking University, which bought the books, is hosting an exhibition of them. The return of the 28,000 books is the biggest buying project involving overseas Chinese relics in history.

The Chinese books were bought by Peking University from Japan's Okura Museum of Art at the end of last year. They are in good condition and cover themes of Chinese philosophy, history, and literature - a treasure trove for both the university and scholars.