One of my favorite books of all time even when I was younger is The Art of War, by Sun Tzu. The book is famous for being a military strategy guide discussing topics that range from how to use a spy properly to why capturing enemy supplies are worth far more than your own. However the book is also used by many other people in life. For a time many business people all over the world have read it for guidance.
Looking into the history of the book tho it becomes even more interesting. Sun Tzu wrote what even today is considered by many the greatest military book ever written. Its thirteen chapters weirdly don’t focus much on actual combat but how to make plans. Born around 545 BCE Sun Tzu was a Taoist that believed combat was at times unavoidable, but was the most dangerous thing the state could undertake and as such should be done only as a last resort and only when plans were meticulously planned.
What is also surprising to many, he may not have existed at all. More on that here. Some believe Sun Tzu was actually a title of a man in the Sun family ( I once read maybe Sun Wu but admittedly can’t remember where or how reliable it even was) and many people over the years have added to the book and left it under the name Sun Tzu.
Regardless of who wrote the book, over 2,500 years later lawyers, military generals, sports coaches and people in business still use it today. It is very much worth reading. Best wishes and may the gaming gods bring you glory.