The idea that there are realms beyond our physical universe is a belief in religions as well as a theoretical possibility in M-theory physics. Physicist Tom Campbell has undergone hundreds of out-of-body experiences to systematically explore these realms. His careful observations provide tantalizing empirical observations of several dozen such realms and their relationships to ours. At the heart of it all Campbell proposes an unbounded consciousness seeking to evolve itself and doing so through creation of digital realities. It is a credibly presented unique and coherent perspective of the ultimate "the big picture" and our place in it.

Bernard Haisch, astrophysicist and author of The God Theory: Universes, Zero-Point Fields, What's Behind It All and The Purpose-Guided Universe: Believing In Einstein, Darwin, and God.
After my son, Erik, killed himself, I read the entire trilogy. It saved my life. I mean that in a literal sense in that I don't think I could have stayed on this plane given the fact that I am a reformed skeptic-physician. I recommend Tom Campbell's "My Big TOE" to everyone on my blog ( I was an intestinal bacterium, now at the very least I am out in the light of day. Thank you Tom for giving me my life back.
Elisa Medhus, M.D., author of Raising Children Who Think for Themselves, Raising Everyday Heroes: Parenting Children To Be Self-Reliant and Hearing is Believing: How Words Can Make or Break Our Kids, My Son and the Afterlife: Conversations from the Other Side and  My Life After Death: A Memoir from Heaven
For centuries science and spirituality have been involved in an intellectual battle over the ultimate nature of reality and the mysteries of consciousness. For science the material world is all there is. However the self-evident existence of a non-physical and self-reflective consciousness that cannot be explained using the present scientific paradigm is, for every sentient being, empirical proof that consciousness is the ground-state of the universe.Tom Campbell's "Big Toe Trilogy" is, for me, simply the most effective and believable explanation for how this self-reflective consciousness exists within a seemingly physical and consistent reality.  Tom presents a model that  is both elegant and intellectually satisfying; a genuine "Grand Theory of Everything".

Anthony Peake. Author of Is There Life After Death? - The Extraordinary Science of What Happens When We Die, The Daemon - A Guide to Your Extraordinary Secret Self, The Out-of-Body Experience: The History and Science of Astral Travel and A Life of Philip K Dick - The Man Who Remembered the Future.

Tom’s My Big TOE motivated me to become love, based on pure logic and science. I hope he will help you too.”
Özi – Germany

“My Big TOE is definitely the single biggest contributor to my getting off my ass and taking a look at

what just might be going on here and ..."abroad".”
Beau T - USA

“My Big Toe has been my own holodeck, a place to sort out all the madness, the noise and all the

ideas that confront and confuse life.”
Chris H - USA

“In a nutshell MBT has made me a better person.”
Linda S - USA

“Tom's MBT Theory has validated my Super Systems Engineering concept with the best model and

terminologies with Elegant Simplicity. I can now step to the edges of the universe to peep the endless

digital information systems with low entropy though-space.”
Joe K - USA

“Thank you Tom for sharing your work and giving us a clearer, fresher vista of reality. We love you.” 
Hector R - San Antonio TX

“Tom Campbell’s teachings have encouraged me to look beyond the illusions of what I see with

my “physical” eyes and look for the deeper meaning of the information being received.”
Jasmine A - USA

“The stillness, presence, clarity of information communicated through Tom whenever I read and listen

gives me a sense of comfort and a framework for choices.”
Hurrem B - Sydney, Australia

“I needed things to make sense to my logical mind and Tom's big TOE is the only model that can truly satisfy the intellectual mind, but also shows a way and encourages you to challenge his theory and explore on your own.

Tom is doing great work and has taken physics and metaphysics to a whole new level.”
Michal G - Krakow, Poland

“Meeting Tom in person and having multiple opportunities to ask him personal questions was priceless”
Mercedeh M – New York, USA