There is a very interesting iOS app available on the US apple store:
"Principles in Action" by Ray Dalio
It is a mix of lectures, video case studies and teaching. It is not only about the principles but also how the ecomonic machine works. It contents a lots of interesting videos around this topic by Bridgewater and Ray Dalio. As far I see, it is free of charge.
It is not just a copy of the Principles book by Ray Dalio, but also covers partly the information of the “Big Debt Crisis”.
Got it on the US apple store and would definitely recommend it to look into.