Personal Finance & Careers - 29 free documentaries about rich & poor.
Start with All the Loopholes Billionaires Use To Live Above the Law (51 min, VICE), then How to Be a Billionaire (47 min, Moconomy). All 29 documentaries here are free to watch from their makers' official uploads. To read deeper, the top-rated book on rich & poor is Rich Dad Poor Dad by Robert T. Kiyosaki.