Some of his most popular books include:
- The Power of Intention: Learning to Co-Create Your World Your Way
- Energy and Spirit: The Science of Our Subtle Bodies
- The New Age: A Guide to the Spiritual Revolution
- The Science of Self-Empowerment: A Practical Guide to Personal Transformation
- The Wisdom of the Heart: A Practical Guide to Spiritual Awakening
- The Art of Healing: A Practical Guide to Holistic Medicine
- The Business of Spirit: A Practical Guide to Spiritual Entrepreneurship
- The Spiritual Path: A Practical Guide to Inner Peace and Fulfillment
- The Way of the Wise: A Practical Guide to Enlightenment
- The Power of Now: A Practical Guide to Living in the Present Moment
In addition to his books, Rountree has also written numerous articles and essays, which have been published in magazines and newspapers around the world. He is also a popular speaker and has lectured on his work at universities, conferences, and retreats.