"Yan Zhenqing's self-report letter".
The representative works of Tang Dynasty regular script include "Ouyang Xun Jiucheng Palace Liquan Inscription", "Yan Zhenqing Magu Immortal Altar", "Liu Gongquan Mysterious Pagoda Stele", etc. "Yan Zhenqing's Self-Letter" is a regular script calligraphy work created by Yan Zhenqing in the first year of Qianyuan of Emperor Suzong of the Tang Dynasty (758 AD). Although it is Yan Zhenqing's personal work, it is not considered one of the representative works of regular script in the Tang Dynasty.