Wikipedia
Jingbirok
The Jingbirok ( known in English as the Book of Corrections), written in Hanmun, is a first hand account of the Imjin War written by high ranking Joseon scholar-official Ryu Seong-ryong. Party to high level decision making on the allied Ming-Joseon side and able to access all Joseon records, Ryu Seong-ryong's Jingbirok has become an invaluable source in the study of the conflict, and Chinese-Korean-Japanese relations. In 1969 the Jingbirok was listed as the 132nd of the National Treasures of South Korea.