Wouldn’t it be great to know exactly where a currency is heading next month? A treasurer who could reliably predict exchange rates could save a company millions—or make a fortune trading. But currencies are very hard to forecast. They jump on news, shift with sentiment, and often seem to move for no reason at all. In this chapter, we’ll explore the main forecasting approaches professionals actually use, how to measure their success, and why even the best forecasts are always wrapped in uncertainty.