Eckhart Tolle is a German-born spiritual teacher and self-help author. His books include The Power of Now: A Guide to Spiritual Enlightenment, A New Earth: Awakening to Your Life's Purpose and the picture book Guardians of Being.
Tolle came to prominence as a self-help author in the U.S. and internationally beginning in 2000, after Oprah Winfrey promoted his books in 2000 and 2005 and created webinars for him in 2008.