于永敏

Yu Yongmin is an author with limited publicly available information; details such as nationality, dates of birth and death, and educational background have not been clearly recorded. Judging from the two works held in the collection, Collected Writings on Health Preservation and Classified Formulas of Materia Medica, Yu Yongmin's writing centers on health and medicine, with particular attention to organizing traditional health-preservation knowledge and materia medica formulas. Collected Writings on Health Preservation focuses on health-preservation concepts and everyday health practices, while Classified Formulas of Materia Medica deals with medicinal substances and formulas, reflecting an effort to organize traditional medical experience. Both works fall under health and medicine, indicating that the author emphasizes practicality and the compilation of materials, aimed at general readers seeking to learn about health preservation and materia medica. Owing to limited public information, the author's life, professional identity, and academic background cannot be described in detail, yet these works offer readers accessible reference material on traditional health preservation and materia medica formulas and hold some documentary value among health-related books.