A Market Maker is a trader that creates an order (buy order or sell order) that is not matched in the live order book.
Market Taker is a trader who buys or sells a coin into an existing order.
So, in the following order book for example, if we want to buy 500 DGB at the price of 0.00000554 BTC we apply market taking, and if we create a buy order of 500 DGB at 0.00000552 BTC we apply market making.
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