It is known that there are two versions of the book "Complementing Shortcomings and Interception": one is from the Dunhuang stone room, which was stolen by the Frenchman Buriot at the beginning of this century and is now in the National Library of Paris, France, which is seriously damaged; Secondly, Xiang's Postscript of the Forbidden City in Ming Dynasty is called Neifu Edition, but its content is quite different from Song Lian's Postscript, which has long been recognized by scholars as a book adapted by others.
It records the paintings and calligraphy collected by Xuanhe Pu Shu and Zhongxing Pavilion in the Song Dynasty, Baodi in Shiqu in the Qing Dynasty, and the bibliography of rare Chinese ancient books.