How many times has the national regular script exhibition sponsored by China Book Association been held?

The national exhibition of regular script works sponsored by China Book Association has been held for six times. China Calligraphy Annual Exhibition is a national calligraphy exhibition sponsored by China Calligraphy Publishing Media Co., Ltd. with the approval of China Calligraphers Association. This exhibition is held once a year and is a permanent exhibition activity of China Calligraphers Association. It is another important platform to show the achievements of contemporary calligraphy creation and academic research after the Lanting Calligraphy Award in China and the national calligraphy seal cutting exhibition.