Okay, Jim. I can take a hint. I read The Ghost Hunter's Guide book by Troy Taylor. Actually, it was a certified course on ghost hunting, which I wouldn't recommend because it costs more and being certified just means that you sent in a test and someone sends you a piece of paper certifying that you have read the book. However, I would recommend the book because it had some very interesting information on the procedures for ghost hunting and tips on how to obtain information on homes and cemeteries. All in all I would say that it was a pretty informative.
I have read others, but can't remember the names of them.
Jim sent me a link to a free on line ghost hunting course, but when my computer crashed I lost all my saved favorites. It was a good while ago, but perhaps he still has the link.