Yes, they are folk artists. You can learn about them.
Calligraphy
(the artistic form of writing)
Calligraphy is a unique artistic expression of the beauty of writing in China and neighboring countries and regions deeply influenced by China culture. Including Chinese calligraphy, Mongolian calligraphy, Arabic calligraphy and English calligraphy. His "China Calligraphy" is a unique traditional art of Chinese characters in China.
in a broad sense, calligraphy refers to the writing rules of characters and symbols. In other words, calligraphy refers to writing with its brushwork, structure and composition according to the characteristics and meaning of words, making it a beautiful work of art. Chinese calligraphy is an original performance art of Han nationality, which is known as: wordless poetry, dancing without lines; Paintings without pictures, silent music, etc.