Ma Suying, a Yi embroider, demonstrates different techniques in front of craft lovers in Shanghai, on Aug 4, 2019. (Photos: Xinhua)

Ma Suying, a Yi embroider, demonstrates different techniques in front of craft lovers in Shanghai, on Aug 4, 2019.

An embroider shows the stitches used in a Yi embroidery pattern in Shanghai, on Aug 4, 2019.

A student creates a butterfly pattern based on a photo in Shanghai, on Aug 4, 2019.

A girl tries out a hat decorated with silverware and embroidery in Shanghai, on Aug 4, 2019. [Photo/Xinhua]

A mother and daughter learn Yi embroidery together in Shanghai, on Aug 4, 2019.