The only thing I recollect was Elisabeth Kübler-Ross' book "On Death and Dying" but mainly the five stages of grief. Reportedly, there was a final chapter in the book dealing with NDE's but she took advice to remove it. Later she wrote more on the subject which, at the time, stretched credulity. While the psychological and physiological stages of dying can be scientifically studied, the transcendental stuff is only anecdotal.
My NDE didn't suddenly transform me into a believer. Mostly it dumbfounded me and I sought to understand it through logical, scientific means. Robert Ornstein's book, "The Psychology of Consciousness" had a greater impact upon me than Kübler-Ross'.
My philosophy classes also had a strong impact upon me. I didn't, and still don't, buy the concept of God as a king on a golden throne as taught in Christian ideology. Eastern philosophy, stripped of woo-woo, was more attractive to me. Especially Zen. It comes down to the fact, like all spirituality, NDEs are more about belief than fact with little hope of gathering facts anytime soon.