“The Fifth Agreement: A Practical Guide to Self-Mastery” is a trade paperback book published by Penguin Publishing Group in 2011. This Toltec Wisdom Book, part of a series by Don Miguel Ruiz, explores personal growth, happiness, and spiritual development. Written in English, the book covers topics such as epistemology and new thought, offering practical guidance for achieving self-mastery. With a compact size of 7.3 inches in length, 5.1 inches in width, and 0.7 inches in height, this book is a valuable resource for those seeking to enhance their well-being and understanding of themselves.