Mary Carroll Nelson is an artist and the founder of the Society of Layerists in Multi-Media, a national network of artists who express a holistic perspective. She is also the author of Artists of the Spirit, in which she first wrote about don Miguel Ruiz and his presentation of the Toltec tradition. Don Miguel Ruiz Jr. is the author of The Five Levels of Attachment, Living a Life of Awareness, and The Mastery of Self among others. He is a lifelong student of his father and grandmother's teachings and continues the work of his family in lectures and workshops.