Synthesized answer
The provided passages describe "The Art of War" as an ancient Chinese military treatise attributed to the strategist Sun Tzu [1]. It dates from the Late Spring and Autumn Period [1].
The passages do not contain enough information to explain the key concepts of "The Art of War" in my own words. They only provide the title, author attribution, and historical context of the work.
Synthesized from the book passages below. Chat with the book on Feynman for follow-up.
From the book
Title: The Art of War by 孙武, Sun Tzu Description: The Art of War is an ancient Chinese military treatise dating from the Late Spring and Autumn Period. The work, which is attributed to the ancient Chinese military strategist Sun Tzu