Liu Kaijun is an author about whom limited public information is currently available, and whose research interests center on historiography in the late Qing period. Among the works held in the collection is his book A Study of Late Qing Historiographical Criticism, which is classified as a historical reading. Judging from its title and subject matter, the work examines how late Qing scholars reviewed and evaluated historical concepts, historical methods, and the writings of historians, placing it in the overlapping fields of modern Chinese intellectual history and the history of historiography. The author's approach appears to rely mainly on textual organization and case analysis, with attention to presenting the overall character of late Qing historiographical criticism and its period features, offering readers a reference for understanding the transition from traditional to modern historiography. Because verifiable personal details are scarce, little can be said about his life, identity, or academic background; readers may instead turn directly to this work to grasp the questions he addresses and his style of argument.