The Four Agreements is a book by Don Miguel Ruiz that outlines a code of conduct based on ancient Toltec wisdom, advocating freedom from self-limiting beliefs which bring suffering and limitation to ones life. The book has sold over 10 million copies in the United States alone and has been on the New York Times Bestselling list for almost a decade. The Four Agreements are:

1. Be impeccable with your word.
2. Dont take anything personally.
3. Dont make assumptions.
4. Always do your best.

The book is broken up into an exploration of the four agreements, with each chapter including the relevant linguistic and historical context for each. By making a pact with the agreements described in the book, the individual is able to create a happier and more successful life.