Why is Wu Beizhi an important military book similar to a military encyclopedia?

The editing and publication of Wu Beizhi has certain practical significance for changing the situation that in the late Ming Dynasty, military commanders did not understand the art of war and abandoned military equipment. With detailed classification and complete collection, it is an important military book similar to a military encyclopedia. Wu Beizhi also collected a lot of very precious materials, such as Zheng He's nautical charts, miscellaneous maps and some weapons, which were not found in his book, so this book occupied a high position in the military history of China and was highly valued by future generations.