Chenguan's dates, nationality, and biographical details are unknown, and publicly available information is limited. Judging from the surviving work, his writings are closely tied to the tradition of the Huayan school of Chinese Buddhism. The library holds one work by him, Huayanjing Shuzhu (Commentary and Annotations on the Avatamsaka Sutra), classified under Eastern philosophy. The book offers explanations and annotations on the Avatamsaka Sutra and is a typical example of Buddhist doctrinal exposition, focusing on clarifying the structure of the scripture and explaining technical terms and levels of meaning. Its style is that of traditional commentary, emphasizing organization and cited sources. Works of this kind are generally intended for readers studying Huayan thought and may also serve as a reference for understanding classical exegesis in Chinese Buddhism. Since the author's life, nationality, teachers, and career cannot be confirmed, this entry makes no conjectures and limits itself to a brief note on the subject and nature of the surviving work.