Foreign exchange is a market where foreign currencies are exchanged at a exchange rate. In the market international currencies are traded. It has huge volume. Arbitrage, currency swap, future trading, future contract, speculation, forward price, spot price and many more terms and systems are included here. It is a 24 hour market and selling and buying of foreign currencies can make a profit for the dealer of the currency. For example, now Indian money is devaluing against US dollar. If an Indian dealer wants to profit he can buy an amount of US dollar in the Indian market he will earn good amount of money. So Trading Forex can be a good avenue to earn money from using the exchange rate at any time of the day. The forex market is great for liquidity. You can convert any currency to other currency. Investors, financial institutions are great users of the market. Actually they are regular player of the market. Central banks of the different countries control the forex in their respective country. They also play as watch dog. Importer and exporter are effected by the market. When they deal with the other countries they have to make Forex Trading Strategy to make deal. Financial institutions, governments, institutional investors use currency Trading System in foreign exchange trading. There need lot of speculation to make money and to avert risk also. It has different type of risks also. The market associated risks are very large. The increase and decrease of exchange rate can affect any time the profit. It also affects contract. In order to hedge the risk different methods of exchange trading has been invented by the market analysis or forex experts. If you can hedge the foreign currency exposure by different swap or option contracts then you will be rest assured about the protection against possible exchange loss in case your prediction. About the currency rate at a future date proves wrong. So you can understand in the process of complexity the random fluctuation is being gone all time. As it is a global market the speculation plays very crucial role. Many financial instruments as derivatives, bonds, funds are trades here. To understand the trading system you need a comprehensive knowledge. Suppose you are investing in stock market, mutual fund, debentures in your country. The forex system will affect your investment. The capital market is influenced by the foreign exchange reserve. Now as a retail investor the door has been opened to you to do Trading Forex. You know how much speculation is necessary here. So a little bit of primary knowledge about the risks and dealing is really helpful. Then you can experience will lot when you will enter in the field. To say you should know the preventive measures before you face something wrong in your speculation. There are many online forex trading systems guide to inform you nature of the market then how and when use the market to make profit. You should have essential knowledge to handle. That is why the guide will be really a lot of money in foreign currency exchange.