Calligraphy font is the classification of calligraphy style. There are five traditional calligraphy fonts: running script font, cursive script font, official script font, seal script font and regular script font, which are five categories. In each category, it is subdivided into several sub-categories. For example, seal script can be divided into big seal script and small seal script, regular script can be divided into Weibei and Tang Kai, and cursive script can be divided into Cao Zhang, Cao Jin and Crazy Grass.

Among them, Ou Kai is a genre style in block letters. It is a calligraphy inheritance represented by Ou Yangxun, the head of the four schools in the Tang Dynasty. Calligraphy pays attention to statutes and steep fonts, and it is the mainstream of block letters that has been circulated for thousands of years.

Brief introduction of common strokes in Ou Kai;

Appreciation of Ou Kai's Works: