Hi LadyRodgers,
I haven't read this book
Zenith 2016 nor will I ever.
I just googled around out of curiosity to see what it's all about and the results aren't encouraging, to say the least.
It appears Thomas R. Horn is a prolific writer about end time prophecies from a Christian perspective (sort of) --a brand of which there are too many already IMO.
He has himself made a seven part executive summary of his book, starting
here and follow the links.
The same or similar (slightly reworked, it seems) is available as a
PDF file.
This is the official website for the book.
Here's a You Tube trailer for it (3.13 min) and
this is a friendly discussion about the book with the author (28.31 min).
Similar coverage in other context
over here.
A critique can be found
here and 79 reviews of it on
amazon.
I think this book would be a waste of time, Work wise -- but that's just me. ;)
Hope this helps a bit. :)
EDIT: hit the post-button accidentally before I was finished and had to add some lines.