Trading pairs are the foundation of any operation on an exchange. For example, in the BTC/USDT pair, you are buying or selling BTC using USDT. There are crypto-to-crypto pairs, such as ETH/BTC, and crypto-to-fiat or stablecoin pairs, like SOL/USDT. Choosing the right pair depends on your strategy: if you seek stability, opt for pairs with stablecoins; if you are looking to take advantage of market movements, you can trade among altcoins. Additionally, pairs with higher volume tend to have lower spreads and greater liquidity. Understanding how pairs work will allow you to make smarter decisions.