What I like about this book is that author takes the topic of death and makes it "less creepy" or in general normalizes this topic. Death is something we can't run away and I don't think is bad to be interested in what happened to you after you die.
(I listen as an audiobook) The author put in the book an interesting question about what makes it interesting ( for example for me was the last chapters, and Viking funeral thinks), the author is easy to explain, and zero problems go into detail.
For somebody who has some interest in death, the occult, etc. I can imagine this will be your great relaxing book is not something extra education but more like relax book with fun facts about what will happen your body.