What is the name of calligraphy written at will?

Casual handwriting is called handwriting. Calligraphy font seal, official script, model, cursive script and line.

Calligraphy is an artistic expression of the unique beauty of words in China and neighboring countries and regions deeply influenced by China culture. Including China calligraphy, Mongolian calligraphy, Arabic calligraphy and English calligraphy. His China Calligraphy is a unique traditional Chinese character art in China.