The Orb Project, Miceal Ledwith, D.D., LL.D. & Klaus Heinemann, Ph.D.
Orbs: Their Missions and Messages of Hope, Klaus Heinemann, Ph.D., Gundi, Heinemann
Orbs, Lightwaves, and Cosmic Consciousness: Interacting with Beings from another dimension, Sandra Underwood Beyond
Photography: Encounters with Orbs, Angels and Light-Forms, Katie Hall and John Pickering
The Afterlife of Billy Fingers, Annie Kagan. After death communication and Billy's appearance as an orb.
Wishes Fulfilled, Wayne Dyer, Ph.D. (Includes my orb photo)
Testimony of Light: An extraordinary Message of Life After Death, Helen Greaves.
Journey of Souls and Destiny of Souls, Michael Newton
Proof of Heaven: A Neurosurgeon's Near Death Experience and Journey into the Afterlife, Eben Alexander, M.D. had a profound spiritual journey into the afterlife during a seven day coma guided by an angelic being who also appeared as an orb.