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There are two main types of trading in the foreign exchange market. The first is simple buying and selling of currency pairs, where you buy one currency at the expense of another. The second way is to buy derivative financial instruments (derivatives), the value of which changes with changes in exchange rates. In any case, it will be useful for you to learn about the activities of interactive brokers https://tradersunion.com/brokers/forex/view/interactive_brokers/ and understand whether its trading conditions are suitable for you.