During the "Isolated Island" period of  Shanghai (from the August 13 Incident of 1937 and the outbreak of the Pacific War in late 1941), Fu Association, as a society and publishing house, was established under the leadership of the CPC. It published a series of red and progressive literature, including Red Star Over China, Inside Red China, as well as The Complete Works of Lu Xun. Recent research on publications by Fu Association has shed light on the fact that The Nature and Motivation of the Chinese Revolution was released as an independent edition prior to the official publications of Red Star Over China. However, the significant documentary value of this discovery has been largely overlooked in the existing studies on Fu Association's books and publishing history, thereby highlighting the necessity for further in-depth analysis. It is worth noting that the commemorative edition of Fu Association's The Complete Works of Lu Xun has relatively scare, with only a limited number of copies being found in possession of previously unknown public institutions and private collectors. Therefore, further exploration for this issue is still required.