1, rare: Zhao Jiufeng is a famous geographer in ancient China, and Five Strategies of Geography is one of his representative works. Because of the passage of time and historical reasons, Zhao Jiufeng's manuscripts may have been very scarce, so the number of original works is limited, and the scarcity makes it have certain collection value.
2. Value of historical materials: Zhao Jiufeng's geographical works are of great significance to the research and development of ancient geography in China. Five Strategies of Geography is one of the important documents of ancient geography in China, which is of certain academic value to the study of ancient geography, history and culture in China.