Foreign exchange trading often refered to as Forex market currency trading and Spot forex is by far the largest and most liquid market in the world with an estimated daily trading volume of over 1.9 trillion dollars thats roughly the 80 times the turn over of New York Stock Exchange. Size definitely matters here. The bigger the market, more liquidity there is and it ultimately results in better execution for you. No single entity or group can manipulate the market.
Some of the benefits include commission free market, 24 hour market liquidity, choosing your trading hours and finding profits in both rising and falling markets, execution, leverage and betteer speed.
Common Forex Terminology:
Bid Price: The price that you can sell a currency pair to the dealer
Ask Price: The price that you can buy a currency pair from the dealer
Liquidity: The ability or ease of buying or selling an instrument, the number of buyers and sellers in the market.
Long: Buying a currency pair.
Short: Selling a currency pair.
Pip: The 5th significant digit in the quote, is the smallest unit of price in change.