Introduction to the library: There are also three-story libraries at the north and south ends. At the south end are Zeng Guofan's Gongji Library and Zeng Jize's Puji Library. At the north end is Zeng Jihong's Fangji Library, which is Fuhoutang's library. The highlight is that it has a collection of about 300,000 volumes of various books, making it the largest private library in modern China.