The Exponential Moving Average (EMA) is a type of moving average that gives more weight to recent price data, making it more responsive to new information than the Simple Moving Average (SMA). The EMA reacts faster to price changes, which is why many short-term traders prefer it. Common EMA periods used in crypto trading include the 9-day, 21-day, 50-day, and 200-day. EMA crossovers are used to generate buy and sell signals, including the golden cross and death cross patterns.