The Four Agreements: A Practical Guide to Personal Freedom" is a profound and influential book by Don Miguel Ruiz, first published in 1997. Drawing from ancient Toltec wisdom, Ruiz presents a code of conduct that can lead to a transformative experience in one's personal and professional life. The book distills this wisdom into four simple yet powerful agreements, which, if practiced diligently, can help individuals break free from self-limiting beliefs and achieve true personal freedom.