What it is: A system for exchanging one currency (like US dollars) for another (like euros, yen, or rupees).
Why it exists: Businesses, travelers, investors, and governments need to swap currencies for trade, tourism, or investment.
How big it is: It’s the *largest financial market in the world*, with trillions of dollars traded every day.
How it works: Currencies are traded in pairs, for example *EUR/USD* (euro vs. US dollar). If you think the euro will go up against the dollar, you buy EUR/USD. If you think it will go down, you sell EUR/USD.
Who participates: Banks, companies, governments, and also individual traders.
NOTE:- Forex trading can be risky, because currency prices can change very quickly.