Liu Yuping's family since the Qing Dynasty (1644-1911) has mastered the procedures for making family tree record-books. [Photo by Ding Yuanyuan/chinadaily.com.cn]

The antique family tree record-book made by the ancestors of Liu Yuping for the Zhang family [Photo by Ding Yuanyuan/chinadaily.com.cn]

Traditional family tree record-book making is recognized as an intangible cultural heritage of Linyi city, Shandong province. [Photo by Ding Yuanyuan/chinadaily.com.cn]