“A Course In Miracles”: This channeled work mirrors the reality of heaven more than any other written source I know. It is a beautiful daily tool for navigating life. 
http://www.amazon.com/Course-Miracles-Foundation-Inner-Peace/dp/1883360269
“Dr. Jensen’s Guide to Better Bowel Care” by Dr. Bernard Jensen: The colon’s health is foundational to whole health, and this very thorough book explains it all.
“The Virgin Diet” by J.J. Virgin: Many health problems are actually physical reactions to certain foods, so eliminating those foods can solve many health problems at their source. By experiencing the benefits of this way of eating, you can find out for yourself. I highly recommend this.
“Quantum Healing: Exploring the Frontiers of Mind / Body Medicine”, by Deepak Chopra, M.D. By combining spirituality and quantum physics, this brilliant physician reveals himself to be a sage metaphysician. Wonderfully inspiring and filled with self-healing hope!
“Talking to Heaven” and “Reaching to Heaven”, by James Van Praagh. This psychic medium shares his thoughts, beliefs and personal experiences of receiving communications from those who have passed over. Very informative and thought-provoking.
“Where Reincarnation and Biology Intersect”, by Dr. Ian Stevenson, M.D.: As Psychiatrist Dr. Stevenson is considered the world’s foremost researcher of reported cases of past-life memories among children. A down-to-earth yet quite exciting resource for those who are skeptical about reincarnation.
“Heading Toward Omega: In Search of the Meaning of the Near-Death Experience”by Dr. Kenneth Ring: This collection of true stories of fellow-NDEers is an inspired reminder of what’s truly important in life. Charts at the end of the book show exactly how NDEers’ lives changed for the better after dying and coming back.
“Reincarnation: A New Horizon in Science, Religion, and Society” by Sylvia Cranston and Carey Williams: This wonderful book is filled with depth research conducted around the world that adds much credibility to the idea of reincarnation.
http://newtoninstitute.org/  This is the website for the (Dr. Michael) Newton Institute for Life Between Lives Hypnotherpy.  Dr. Newton authored the three books “Journey of Souls”, “Destiny of Souls” and Life Between Lives Therapy” which explore spirituality from “the other side”. 
http://www.brucelipton.com/  Bruce Lipton PhD authored the cutting edge book on epigenetics entitled “The Biology of Belief”.  As a cell biologist with a wonderful sense of play, Bruce taught in American medical schools for many years… until his own research clarified that standard allopathic medical teachings need to be updated!  In truth, our beliefs, emotions and other changeable environmental factors have the ultimate “say” in how our cells express themselves.  The Biology of Belief is worth absorbing as it will improve your understanding of genes.  As a public speaker, Bruce is top notch: entertaining AND thoroughly informative.
“Women’s Bodies, Women’s Wisdom”, by Dr. Christiane Northrup: This multi-faceted, compassionately written book is a must-own for every woman who wants to maintain power over her whole health. Dr. Northrup is truly committed to helping women help themselves!