Forex trading is the process of buying and selling currencies in the foreign exchange market. The foreign exchange market, also known as the FX or currency market, is a global decentralized market where all the world's currencies trade.
The foreign exchange market is open 24 hours a day, five days a week (except on holidays), making it one of the most accessible markets in the world. It's also one of the most liquid markets in the world, with trillions of dollars worth of currencies traded every day.