On the Nexex platform, you can create two types of order depending on your trading strategy. A limit order is created when the Coin/Token desired buy/sell price is specified.
A market order is created when the Coin/Token is bought/sold at current market price.
Limit orders are used when the traders want to have control over price more than on quick execution of the order.
Market orders are generally faster and simpler than Limit ones as they are executed as soon as there are open orders from other traders. When creating a Market order, always check the current price before confirming.