| title | ISBN-13 | year of publication |
|---|---|---|
| The Afterlife Experiments: Breakthrough Scientific Evidence of Life After Death | 978-0-7434-3659-5 | 2003 |
| The Energy Healing Experiments: Science Reveals Our Natural Power to Heal | 978-0-7432-9239-9 | 2008 |
| The G.O.D. Experiments: How Science Is Discovering God In Everything, Including Us | 978-0-7434-7741-3 | 2007 |
| The Sacred Promise: How Science Is Discovering Spirit's Collaboration with Us in Our Daily Lives | 978-1-58270-258-2 | 2011 |
D. G. · D G E · G.E · Gary E. · P.E. · P.G. · Ph.D.
Atria Books/Beyond Words · Pocket Books · Simon & Schuster