Who is the calligrapher Sean?

Calligrapher Sean has successively created several sets of "four-force method" teaching methods in the teaching system, such as fist brush calligraphy, five-finger ox painting, 3-minute "vigorous" calligraphy Tai Chi crash, and 3-30 hours of global "brush hard pen zero-based calligraphy crash teaching method". For a long time, he has popularized calligraphy in remote and poor mountainous areas and Hope Primary School in China. Today, his disciples are all over the world 120 countries and regions, and his deeds have been reported by hundreds of news media at home and abroad. He is a man I admire very much!