Major, minor and exotic pairs

Major pairs always include the US Dollar and one other big global currency — EUR/USD, GBP/USD, USD/JPY. These are the most traded pairs on earth, which means tighter spreads and more predictable behavior.

Minor pairs (also called cross pairs) don't include the Dollar at all — EUR/GBP, AUD/JPY. Still liquid, but can move a bit less predictably.

Exotic pairs pair a major currency with a smaller or emerging-market one — USD/NGN, USD/ZAR. These can move sharply and unpredictably, and most beginners should stay away from them until they've built real experience on majors first.

Liquidity is the real reason this categorisation matters, not just tradition. A highly liquid pair like EUR/USD has so many buyers and sellers at any moment that your order fills almost instantly, at close to the price you expected. An illiquid exotic pair can have real gaps between what you wanted and what you actually got, especially during quiet hours.

This is also why major pairs are the standard training ground almost everywhere, including here. The lessons on charts, risk and psychology in this course all assume the kind of steady, liquid behaviour majors give you — apply the exact same logic to an exotic pair too early and the wider spreads and sharper moves can catch you off guard.