Forex, or foreign exchange, is the market where one currency is exchanged for another. Prices are always quoted as pairs. In EUR/USD, the euro is the base currency and the US dollar is the quote currency. A price of 1.0850 means one euro costs 1.0850 dollars. Buying the pair expresses the view that the euro will strengthen relative to the dollar; selling expresses the opposite view. Retail traders usually access this market through rolling spot contracts or CFDs rather than taking delivery of banknotes.
Currencies move because expectations change. Interest-rate decisions, inflation, employment, economic growth and political risk can alter the expected return from holding a currency. If traders believe the Federal Reserve will keep rates higher than the European Central Bank, the dollar may gain against the euro. The reaction is not always intuitive: a strong data release can already be priced in, so compare the actual number with the forecast and the market's positioning rather than labeling news simply good or bad.
The market runs from Monday morning in Asia through Friday evening in New York. Liquidity shifts between the Sydney, Tokyo, London and New York sessions. EUR/USD and GBP/USD are often most active during London and the London–New York overlap, while JPY and AUD pairs can respond more during Asian hours. Wider spreads and erratic moves are more likely around the weekly open, holidays, major announcements and the daily rollover. Check the spread before entering because it is part of the trade's immediate cost.
A practical trade begins with a reason, an invalidation level and a position size—not with a prediction alone. Suppose EUR/USD is trending higher and pulls back to a prior support area. A trader might buy only after price rejects that area, place the stop below the structure that would disprove the idea, and target the next resistance. If the entry is 1.0850 and the stop is 1.0825, the risk is 25 pips. Position size should then be calculated so a stopped trade loses only the planned account amount.
Beginners should watch one or two liquid pairs, mark the previous day's high and low, and note scheduled high-impact events before each session. Record screenshots, entry logic, risk and outcome in a journal. Review execution over a meaningful sample—such as 20 trades—instead of changing strategy after every loss. Avoid increasing size to recover money, moving a stop farther away, or opening several pairs that all amount to the same US-dollar bet.
Actionable takeaway: choose a consistent trading window, risk a small fixed fraction per idea, and define the exit before submitting the order. Use a demo account until order types and pip values feel routine. Profit is never guaranteed; the first objective is to execute a repeatable process while preserving enough capital to learn from a large sample of trades.