Zhang Junke is a Chinese author about whom limited public information is available. At present, he is known only as the author of Zhongyi Mingfang Leijian (A Classified Survey of Famous Traditional Chinese Medicine Formulas), a work catalogued in the field of medicine. As the title suggests, the book takes classic traditional Chinese formulas as its subject and organizes and examines them by category, making it a work of compilation in the study of Chinese formula science. Writing of this kind generally focuses on the sources, composition, functions and compatibility principles of formulas, with clear categories and easy reference in mind; it may serve clinical and teaching purposes in Chinese medicine and also suit readers with an interest in traditional Chinese medical knowledge. As only one work by this author is held in the collection, and nothing can be confirmed about his dates, native place, education or career, this note makes no conjecture about his life and confines itself to a brief account of the subject and approach of his extant work, leaving further details to be supplemented by public sources.
