His most famous book, The Four Agreements, was published in 1997 and sold about 10 million times in the United States and has been translated into 46 languages. The book advocates personal freedom of beliefs and agreements we have made with ourselves and others that create restrictions and misfortunes in our lives.  It was broadcast on Oprah`s television.  The four agreements are as follows: in the first part of this 2-part video, we learn something about the “domestication” of man and how all the rules and values of our family and society are imposed on us by a system of punishment and reward. As little children, it is our true nature to love and be happy, to explore and enjoy life; We are absolutely authentic. But then we learn to be what others think we should be, and because it`s not normal for us to be what we are, we start pretending to be what we aren`t. When we are teenagers, we have learned to judge ourselves, to punish ourselves and to reward ourselves according to agreements we have never chosen. The four agreements help us break self-limiting agreements and replace them with agreements that bring us freedom, happiness and love. “The Four Chords” not only gave me the four chords with which I made small positive changes in my life, but the book also helped me understand the process of “domestication” and how this “domestication” shaped my belief systems. The fourth agreement allows readers to better understand the progress made in achieving their life goals. This agreement implies the integration of the first three agreements into daily life and the full potential of exploitation.  It`s about doing what`s best to manage individually, which is different from the different situations and circumstances the individual may face.
Ruiz believes that if you avoid self-judgment and do his best at every given moment, he will be able to avoid regrets.  By integrating the first three chords and giving the best of themselves in all facets of life, the individual will be able to lead a life free of sadness and self-extinction.  The Four Agreements©, was released in 1997 and has sold about 9 million times. It`s been on the New York Times bestseller list for nearly a decade. Everything we do is based on agreements we have made – agreements with ourselves, with other people, with God, with life. But the most important agreements are those we encounter with ourselves. .