Wujing Zongyao
The "Xu Wujing Zongyao" (續武經總要; literally "Continuation of Wujing Zongyao") is a "continuation" of the "Wujing Zongyao" written in the late Ming dynasty. The book focuses primarily on army formations and military deployments. It was written by Fan Jingwen (1587–1644), who was then the Vice President of the Board of War (兵部尚書; "bingbu shangshu"). Fan wrote the book because he felt that reprints of the "Wujing Zongyao" circulating at that time were out of date and did not take into account the technological and strategic changes that had occurred since the Song dynasty. The only surviving copy of the "Xu Wujing Zongyao" is held by Fudan University Library.