Another thing they went over was the difference between reflowable and fixed layouts and setting up your files properly. While it wasn't a training course on how to create an interactive ebook, it helped to shed some light on what goes into the process of it. And little did I know at the time, that this is all possible with just using InDesign. Not of course for the animations/videos, but you can embed these types of things into your file. A step-by-step guide for creating an ebook can be found here.
In searching around for some examples of interactive ebooks, here is what I found:
And then I found this beauty! If more books, besides childrens book, were developed like this, I would definitely read more.