Introduction to "The Complete Works of the Prime Minister's Legacy": General Zhang Zhizhong, a senior officer of the Kuomintang, had many contacts with Zhou Enlai and Dong Biwu. He trusted the Chinese Communist Party and had special respect for the old revolutionary Dong Biwu. During the negotiations between the Kuomintang and the Communist Party in Nanjing, Zhang Zhizhong presented this hardcover copy of "The Complete Works of the Prime Minister's Legacy" printed by the Political Department of the Military Commission in 1943 to Dong Biwu. The inside cover of the book had a piece of yellow paper with a white background that was 14.5 cm long and 10 cm wide. , the letter was written in ink "Zhang Zhizhong presents to Mr. Biwu" and stamped with Zhang Zhizhong's seal.