Proof of Heaven: A Neurosurgeon's Journey into the Afterlife - Eben Alexander, M.D. Also a great 1.5 hour video on uTube of him speaking: 

Life After Life (1975) - Raymond Moody, M.D. - The classic early exploration of near death experiences. Also: Coming Back: A Psychiatrist explores Past Life Journeys (1991), Glimpses of Eternity (2011) and many more.

The Afterlife of Billy Fingers - Annie Kagan

Saved By the Light: True Story of a Man Who Died Twice - Dannion Brinkley with Paul Perry

My Son & the Afterlife - Elisa Medhus MD

Evidence of the Afterlife - Jeffrey Long, MD

What Thousands of Near Death Experiences Can Teach us about Dying - interview with Jeffrey Long MD
Picture
A dear friend appears shortly after leaving his body - Lane deMoll
Picture
"The Veil is Thin (And Getting Thinner)" - Lane deMoll 2010