There are several different order types you should understand to be able to trade the Forex Market.
Market Order: This order type is used to enter or exit the market immediately at the current quoted price. If you want to buy you will be filled at the ask price; if you want to sell, you will be filled at the bid price.
Limit Order: This order type is used to buy or sell a pair at a predetermined price. A buy limit order will only be filled if the market trades at or below the limit price you determine. A sell limit order will only be filled if the market trades at or above the limit price.
