The Four Agreements is a bestselling self-help book written by Don Miguel Ruiz, originally published in English. This nonfiction book explores ancient Toltec wisdom and provides practical advice on how to live more fulfilling and authentic lives. The book title, "The Four Agreements," refers to the four principles that guide the reader towards personal growth and happiness. Perfect for those seeking guidance on their spiritual journey, this book has sold millions of copies worldwide and is a beloved classic in the self-help genre.