The beautiful fonts of the principal's seal of graduation certificate include, but are not limited to, Song Dynasty, regular script, bold, Wei Bei, official script, running script, official script and Song Ya. Among them, Songti is the most commonly used font, with square regular script and artistic sense. Bold gives a sense of formality. Wei Bei's strokes are clear and frustrated, his fonts are round and plastic, his official script structure is balanced, symmetrical, neat and stable, and his official script is used for packaging and publicity, which embodies the artistry of Chinese characters. These fonts have their own characteristics and advantages, and can be selected and used according to specific situations and personal preferences.