 Of the university or college libraries, the collections of Peking University and Zhejiang University libraries lead the nation.The national library network also includes scientific research institution libraries, trade union libraries, plus libraries and reading rooms attached to government institutions, army units, primary and secondary schools, townships, enterprises and local communities.The country's main library, the National Library of China, housed a rich collection of books, periodicals, newspapers, maps, prints, photographs, manuscripts, microforms, tape recordings, and inscriptions on bronze, stone, bones, and tortoiseshells.