The artist who created a super-helpful explainer on the differences among England, the UK, and the British Isles is back, this time with a primer on China. If you’ve ever traveled from Macau to Hong Kong to mainland China, you’ll notice that your passport gets stamped every time. Each one has its own government, money, police force, schools, and even languages. But Hong Kong and Macau are not their own countries, despite the fact that Hong Kong had its own team in the 2008 Beijing Olympics. Check out the video below for the quick, correct, and funny explainer, which will make you feel a lot more confident about any future Macau, Hong Kong, or China references.