This is a book that should interest a few readers here. Details are :

"People Who Don't Know They're Dead" by Gary Leon Hill. Published by
Weiser Books ISBN 1-57863-297-8.

As one may have guessed from the title the topic is spirit rescue
work.

Similar books are listed on my page at ;

http://home.vicnet.net.au/~johnf/bookprot.htm

Regards, John.