Yan Pengfei is a Chinese book author about whom limited public information is available. Two works can currently be confirmed, falling respectively into the categories of examinations and war and military fiction. His representative work, Algorithm Design and Analysis, addresses the study and examination needs of students in computer science and related fields, covering basic methods of algorithm design and complexity analysis; it is a typical course textbook or exam-preparation title. His other work, Changing Situation, belongs to the war and military category, a notably different subject area that shows the author's attempts at writing across different fields. Since the database contains no personal details such as nationality, dates of birth and death, or educational background, it is not possible to determine his professional training or career identity, nor to sketch a complete picture of his writing trajectory. Overall, Yan Pengfei's works span a fairly wide range, from examination-oriented content emphasizing logic and technique to military narrative themes, and readers may consult the individual titles to learn more about his writing characteristics.
