Artists perform shadow puppet for pupils at Yuzhuang Primary School of Zhenzi Township in Luanzhou City, north China's Hebei Province, July 22, 2019. The primary school organized free shadow puppet classes during summer vacation, inviting local artists to introduce shadow puppet knowledge to children. (Xinhua/Mou Yu)

Pupils watch shadow puppet performance at Yuzhuang Primary School of Zhenzi Township in Luanzhou City, north China's Hebei Province, July 22, 2019. The primary school organized free shadow puppet classes during summer vacation, inviting local artists to introduce shadow puppet knowledge to children. (Xinhua/Mou Yu)

An artist teaches pupils shadow puppet performance skills at Yuzhuang Primary School of Zhenzi Township in Luanzhou City, north China's Hebei Province, July 22, 2019. The primary school organized free shadow puppet classes during summer vacation, inviting local artists to introduce shadow puppet knowledge to children. (Xinhua/Mou Yu)