Life After Life, by Raymond Moody, MD

This was the book (published in 1975) that first brought to light the phenomenon of near-death experiences (NDEs). It was, in fact, Dr Moody who created the term in this book. 

Here's the description of the book found at Amazon.com:

Life After Life introduced the world to transformative insights into near-death experiences. Originally published in 1975, it is based on the accounts of 100 individuals who were clinically dead and revived. Through their moving stories, Dr. Moody - the “father” of the modern NDE movement - explores recurring themes like the bright light, the tunnel, reunions with loved ones, and profound peace. These interviews changed the cultural conversation about life, death, and what comes after it.

This bestselling book has remained a classic work for over 50 years, inspiring works by modern authors like Eben Alexander, Todd Burpo, Mary Neal, and Betty Eadie. 

Life After Life continues to be a beacon of comfort for the bereaved, a definitive resource on reincarnation, and an empathetic guide for profound spiritual growth. Above all, it’s a life-changing journey for those yearning to uncover deeper truths, transcend limitations, and awaken to the boundless potential of the soul—and the full meaning of existence.