Lü Yun is an author about whom limited public information is available; the library currently holds only one work by this name, the collection of prose and miscellaneous writings titled Deep in Time. This representative work suggests that Lü Yun writes in the genre of prose and essays, generally observing life and time from a personal perspective. The style tends to be gentle and delicate, drawing emotion and reflection from everyday experience. The title Deep in Time itself hints at a concern with the past, memory, and the passage of time, and carries a strong lyrical and introspective tone. Since the author's biographical details, educational background, and writing career are not clearly documented, this introduction makes no speculation and offers only a brief outline of the author's writing based on the work held in the library. Readers who wish to learn more about Lü Yun's writing may begin with Deep in Time and appreciate its mode of expression and emotional tenor within the category of prose and miscellaneous writings.