Yan Zhenqing in Tang Dynasty was called another calligraphy innovator after Wang Xizhi by later generations. He took part in the imperial examination when he was young. He studied books twice.

Ouyang Xiu: Strong personality and strict statutes?

Yan Zhenqing: Dignified? Rich Apollo

Liu Gongquan: Strong bones? Compact and organized

2.( 1) emphasized the great achievements and important position of Yan Zhenqing.

(2) It shows Zhang Xu's sincere appreciation and help to Yan Zhenqing.

3. Concentrate, consult modestly, study hard and form your own unique style.