A team of international experts presents the history, recent developments, and controversies in the intriguing study of near-death experience. Experts from around the world share the history and current state of near-death experience (NDE) knowledge. They explore controversies in the field, offer stories from their research, and express their hopes for the future of investigation into this fascinating phenomenon. As modern medical techniques for resuscitation advance, NDEs are more frequently reported. These include more than the popular notions of moving through a tunnel or seeing a light. They also include people, once revived, knowing things their knowledge of which can't currently be explained. As The Handbook of Near-Death Experiences: Thirty Years of Investigation makes clear, great controversy exists in the medical and psychological fields concerning NDEs. Are they caused by physiological changes in the brain, or are they biological reactions to oxygen loss or impending death? Are they a product of changing states of consciousness? Or are they caused by something else altogether? All of these ideas and more are discussed in this unique and comprehensive volume.