The currency market is when people buy and sell different types of money, like coins and paper money. It's a bit like shopping, but with money. Usually, people buy one kind of money with another kind of money, so that their money is worth more than it was before. For example, if you’re from the United States, you might buy Euros with your Dollars, so that now you have Euros instead of Dollars. That way, the Euros are worth more than the Dollars, and so you have more money than you had before!