Wang Shuangxiang is an author about whom limited public information is available; only one work is attributed to this name, Mai Zhen (Pulse Diagnosis), which is classified under medicine. Judging from its title, the book concerns the traditional Chinese diagnostic method of pulse examination, covering the identification of pulse patterns, the understanding of pulse theory, and clinical application, and thus belongs to the specialized literature on diagnostics in Chinese medicine. Since no reliable records of the author's life, education, or professional identity have been found, the writing style and scholarly orientation can only be inferred from the subject matter: the fact that pulse diagnosis is treated in a book of its own suggests a concentrated focus on this field and a practical, experience-based approach that readers can consult alongside practice. Pulse diagnosis has long been regarded as the most subtle and difficult of the four diagnostic methods in Chinese medicine, and works on the subject are of reference value to both beginners and practitioners. This entry is based solely on the available bibliographic information and makes no conjecture about the author's identity; readers seeking to understand the author's scholarly background should consult the original book and further public sources.