There are about 400 thousand ancient thread - bound Chinese books in the library .
The Nanjing University Library , owned by Nanjing University , is a library in Nanjing , China , with a long history .
There are about 400 thousand ancient thread - bound China books in the library .
The Nanjing University Library , owned by Nanjing University , is a library in Nanjing , China , with a long history .