A market maker is a trader who always tries to buy and sell at the best ask and bid, and a market taker tries to execute their trades immediately.
Similar to stock and commodity exchanges, online Bitcoin marketplaces usually designate Bitcoin participants as market makers or takers. A market maker is a trader who always tries to buy and sell at the best ask and bid, and a market taker tries to execute their trades immediately. Takers are more concerned with liquidity and quick trades.