Ai Bingjun, originally from Shandong. Master Mo Jiuzhai, pen name Yu Shi, word Mo Jiu. I like calligraphy and seal cutting since I was a child. For many years, I have been engaged in lithograph seal cutting based on China's theory of calligraphy and painting seal cutting. At the same time, my seal script and various ancient Chinese characters are deeply loved by my colleagues. My artistic resume and related works have been edited and published by various newspapers and books and broadcast by publishing houses. His works have been exhibited at home and abroad for many times, widely collected by all walks of life and deeply loved.