Why an Afterlife Obviously Exists: On finishing this book, you will be convinced that death is not a dead end, by Jens Amberts

From the publisher's website: Why an Afterlife Obviously Exists is a philosophical argument demonstrating why the existence of an afterlife is beyond astronomically likely and hence empirically certain. It explains how we have every rational reason to think that people who have near-death experiences are not only telling the truth, but the book also argues that near-death experiencers are thoroughly justified in knowing that they visited the actual afterlife. 

Further information at the publisher's website: Iff Books