Sun Tzu's Art of War is a book on military strategy said to have been written by Sun Wu in the Spring and Autumn period of China, 2500 years ago. When it comes to so-called theories of war, there are various books in ancient China, not limited to Sun Wu, and many theories of war in the West, such as Clausewitz's (apparently). Of these, Sun Tzu's Art of War is said to be of the highest quality.
This book explains Sun Tzu's Art of War in an easy-to-understand way. It is not a biased commentary full of the author's feelings, which is common but explains Sun Tzu's Art of War in a very easy-to-understand way, with various episodes along with the original text.
When you actually read it, you realize that although it is a book about war written 2,500 years ago, it contains a lot of wisdom that can be applied to the present day, and to our daily lives. The episodes introduced are also thought-provoking and full of fascinating stories that will keep history buffs turning the pages at a fast pace.