"The Art of War" was authored by Sun Tzu, an ancient Chinese military strategist, and philosopher. This treatise, believed to have been written in the 5th century BC, covers various aspects of warfare, strategy, tactics, and leadership. Its principles extend beyond military applications, influencing fields such as business, sports, and personal development. The work emphasizes the importance of adaptability, understanding the enemy, and leveraging terrain, making it a timeless source of wisdom still studied and applied in various contexts today.