I looked it up and found it Link Removed. It looks to me like it's meant for people like myself, the user or trainee, to purchase for follow-up retention after a class. Or for other people, still like me, where our states don't require a mandated training class. Having this would be at least an introduction for some people.... or at least a refresher for others.
Personally, I think everyone should get some kind of training. I received my first training in the Army 23 years ago, and get annual training from the DOC. But think I'll look into picking this up just for viewing every now and then as a refresher...