Henry George theorum is about taxes. It's an idea about how a country should make money. The idea suggests that if the country taxes land, the people who buy, sell or use land should have to pay the government money in exchange for using the land. This money would be used to pay for things like national defense, roads, healthcare, and other public services that benefit everyone in the country. The more land someone owns, the more money they have to pay in taxes. This encourages people not to buy up too much land, and it also helps the government to have money to run the country.