Don Miguel Ruiz

Don Miguel Ruiz is a Mexican author and teacher whose The Four Agreements — a brief code of personal conduct drawn from Toltec wisdom — has sold over ten million copies and become one of the most widely read spiritual self-help books of the past three decades.

Don Miguel Ruiz trained as a surgeon in Mexico before a near-death experience redirected him toward the shamanic traditions of his Toltec ancestry. He moved to California and began teaching, eventually articulating a system of four agreements — a personal code of conduct — drawn from his interpretation of ancient Toltec wisdom and published as The Four Agreements (1997).

The four agreements are: Be Impeccable with Your Word; Don’t Take Anything Personally; Don’t Make Assumptions; Always Do Your Best. The book argues that most human suffering arises from the “domestication” of children into a system of agreements — beliefs about themselves and the world — that do not actually serve them. The four agreements offer a replacement set, drawn from ancient wisdom rather than societal conditioning. The framework is simple enough to remember but deep enough to apply across a lifetime.

The book has sold over ten million copies in the United States and been translated into forty-six languages, making Ruiz one of the most widely read Spanish-language spiritual teachers in history. Its success has been sustained by word-of-mouth and by its inclusion in Oprah Winfrey’s reading recommendations. Ruiz has written several sequels — The Mastery of Love, The Voice of Knowledge, The Fifth Agreement (with his son) — but The Four Agreements remains his defining work and the entry point for all subsequent reading.