Hou Jingwen is an author about whom limited public information is available; all that is currently known is a single work, The King of Sales per Square Meter, commonly classified under finance and business. Judging from the title and category, the book likely centers on the concept of sales per square meter in retail management, discussing output efficiency per unit of selling space as a key measure of store and shop-floor performance, and may touch on space utilization, product mix, customer conversion, and operational management. Writing of this kind is usually aimed at retail practitioners, store managers, and readers interested in commercial efficiency; it tends to be concrete and practice-oriented, using an operating metric as an entry point to turn abstract management questions into comparable, actionable data. Given the limits of the available records, the author's nationality, dates of birth and death, education, and professional background cannot be confirmed, nor is it appropriate to speculate about the book's specific arguments, sources of cases, or market reception. Readers may form their own judgment based on bibliographic information and their own reading needs.