Zhou Zhibing, the apprentice of Pan Mingsheng, applies dye to the shadow puppet at Xinzhai Township of Weiyuan County in Dingxi City, northwest China's Gansu province, March 13, 2019. Many local folk artists concentrate on inheriting and passing down the folk art of shadow puppet performing and making in Gansu. They devote themselves to the study of the art and also organize various events to popularize the art. (Xinhua/Li Xiao)