Wang Ji was a physician of the Ming dynasty. Publicly available biographical information about him is limited: neither his dates of birth and death nor his nationality are clearly recorded, and he is known today mainly through his medical writings. The library holds two of his works, Zhenjiu Wenda (Questions and Answers on Acupuncture and Moxibustion) and Waike Lili (Systematic Cases in External Medicine), both classified under medicine. Judging from these extant works, Wang Ji wrote on acupuncture and moxibustion as well as on external medicine. The former discusses acupuncture theory and clinical questions in a question-and-answer format, while the latter systematically organizes diagnostic and therapeutic approaches to external diseases, reflecting a style that values classical sources, clear organization, and practical application. Both works circulated in later Chinese medical literature and offer some reference value for understanding the state of acupuncture and external medicine in the Ming period. Because biographical materials are scarce, details of his life cannot be reliably established, and this introduction is based only on his works and their common classification.
