The links to files in the book are not working for me.
https://drive.google.com/open?id=1DXQHJwHiks0aU7Id4RrlEVEljoUFPH4
A sample exam with answers would be almost as useful, however, the author does give a thorough working of the problems.
Without the example files, not a lot can be done.
(reviewed the day of purchase)