Jin Jian, the official in charge of this project, provided elaborate detail on the printing process in his "Wu Ying Tian Ju Zhen Ban Cheng Shi" (Imperial Printing Office Manual for Movable Type).
Jin Jian, the official in charge of this project, provided elaborate detail on the printing process in his "Wu Ying Tian Ju Zhen Ban Cheng Shi" (Imperial Printing Office Manual for Movable Type).