Mary Roach is the author of Stiff – the Curious Lives of Human Cadavers. After writing about what happens to the human body after the person dies, it seems appropriate to write a book about what happens to the human soul after the body dies. Spook – Science Tackles the Afterlife was written in 2005.
In my opinion, the best way to read Spook is to set aside whatever religious ideas you may have about the afterlife. Go into this book with an open mind and you will definitely learn something about human nature.