Are the eleven annotated books of Sun of Sweeping Ye Mountain House valuable?

Worth it,1one in 20 yuan. According to the query Taobao official website shows. Sun Tzu's Art of War is the most important work in the history of military science, and Sun Tzu's Eleven Notes is the most important biography of Sun Tzu's Art of War. This book was bought in Taobao Flower 120 yuan last year, so the eleven notes on Sun Tzu's sweeping leaves are valuable. This book brings together eleven annotations of Cao Cao, Du Mu, Li Zhi, Jia Lin and Zhang Yu, which enriches the content of The Art of War. Various annotations not only explain the text, dredge the meaning of the text, but also add many interesting historical stories, so that the explanation of operational strategy is not just reasoning, so that readers can understand military strategy more deeply. This book is set in the Song Dynasty.