The Power of Now: A Guide to Spiritual Enlightenment is a book by Eckhart Tolle. The book is intended to be a guide for day-to-day living and stresses the importance of living in the present moment and transcending thoughts of the past or future.
Published in the late 1990s, the book was recommended by Oprah Winfrey and has been translated into 33 languages. As of 2009, it was estimated that three-million copies had been sold in North America