You might want to read an extraordinary scientific book “Evidence of the After-Life” by Dr. Jeffrey Long about near death experiences.
It’s a fascinating subject and verifies that one’s soul lives on, even though the body may be dead on the operating table.
If you need a book besides the bible, it ain’t Christian. There are a lot of great Mormons and Jehovah’s Witnesses are the meekest people I have ever met but that doesn’t make them Christian.