What we know now about Wang Xizhi's works are all copied.
The first month post is the second post of Long Live Tian Tong in Tang Dynasty.
Confucius posted a copy of the official residence of the Tang Dynasty.
Calligraphy is a double-hook Mo Bao in the early Tang Dynasty.
Shangyu Post is an imitation of the Tang Dynasty.
Aunt's post is one of "Long live the Tang Dynasty".
The second thank-you letter of the funeral was a double-hook ink book of Tang Neifu, which was introduced to Japan by the envoys in Tang Dynasty in Nara period.
The original work is no longer in existence, and the only thing people expect is the original preface to Lanting in the mausoleum of Emperor Taizong. But some people say that the authenticity can only wait for archaeological excavation.