This book is a summary of the experiences and lessons of ancient Chinese emperors and generals who conspired with their ministers to conquer the world, consolidate political power, and develop and build the country. It is reflected in the ideas in various aspects such as ideology, politics, military, and economy. It is also a book that criticizes the ruling, employment, military leadership, and financial management techniques of the feudal dynasty. The entire article is narrated in easy-to-understand vernacular, plus a variety of cases, analyses, verifications, and suggestions. Logic + thinking enlightenment. Strong practicality. It doesn't talk about big principles, but it only talks about practicality. It is not just about reading books, it can also broaden your horizons from multiple dimensions and improve your thinking and cognition. Use the past for today