Xu Qi is an author for whom publicly available information is currently limited; his nationality, dates of birth and death, and educational background cannot be confirmed. Within the library's holdings, only one work appears under his name: the finance book Digital Cash. The title points to digital payment and the changing forms of cash, suggesting that his writing focuses on real-world shifts in financial technology and the circulation of money. Because biographical details, professional experience, and other works are unavailable, it is difficult to assess his professional identity or the full range of his writing. The choice of subject does indicate a preference for discussing new developments in finance in an accessible way, explaining to general readers how digital technology affects everyday payment and the use of funds. For readers seeking an introduction to the concept of digital cash, this book can serve as a starting point. Further details await additional public information.
