Core Points - The article discusses the successful return of the "Bullet Library Silk Book" volumes two and three from the Smithsonian Institution to China, highlighting their historical and cultural significance [1][2]. - The "Bullet Library Silk Book" is recognized as the earliest known silk book from the Warring States period, with a total of over 900 characters, making it invaluable for research in ancient Chinese texts and history [1][2]. - The National Cultural Heritage Administration of China plans to continue efforts to retrieve the first volume of the "Bullet Library Silk Book" [5]. Summary by Sections - **Cultural Significance**: The "Bullet Library Silk Book" is the first known ancient text of its kind in China, crucial for the study of ancient Chinese characters and academic history [1]. - **Historical Context**: The silk book was looted from a Chu tomb in Changsha in 1942 and has been in the United States since 1946, marking a 79-year period of being abroad [2]. - **Future Efforts**: The National Cultural Heritage Administration is actively working to bring back the first volume of the "Bullet Library Silk Book" [5].