Our neighbours across the Atlantic are only 'going back to school' this week, so revered Last Week Tonight presenter - John Oliver - took a brief break from his holliers to teach returning students ALL they need to know in approximately 3 minutes. 
It includes such shiny pearls of wisdom as "Math. You will be repeatedly told 'you need this when you grow up.' This is bullsh*t." He also includes a segment on pet names for a certain president's penis, a master class in "geography", and some MAJOR spoilers when it comes to classic books.