A Posthumous work of the crown prince Jangheon (1735-1762) who was a son of Yeongjo and a father of Jeongjo. The publishing work was started from 1803 (Year 3 of Sunjo) and in 1814, under the name ‘Gyeongmogungyeje’, 30 copies were published. His works from the age of 13 to 27 were categorized according to the styles and times. This material shows the life of crown prince Jangheon.