Original volumes of the Siku Quanshu, the Imperial Collection of Four or Complete Library in Four Branches of Literature, are on display in Gansu Province Library in Lanzhou City, the capital of Northwest China’s Gansu Province, Oct. 20, 2016. The Siku Quanshu, the largest collection of books in Chinese history, was moved by train from Shenyang in Liaoning Province in 1966 to Lanzhou for safety. More than 20 experts have engaged in the preservation of the national treasure. As the library is celebrating the 100th anniversary of its founding, it has published a commemorative book about the Siku Quanshu. (Photo/people.cn)
