The Forex market spans from one zone to another in all major financial centers on a 24- hour basis since it has no physical exchange. Since there is no centralized exchange for currencies to be sold or bought, forex is considered to be an over- the counter market or what is called OTC. Banks and forex dealers are connected around the world via internet, fax and telephone to form the Forex market. Read through this article, introduction to forex, in order to know more about forex trading as well as its purpose and many more. Learning forex enables us to know some forex terms, codes, numbers and definitions. Forex trading 101 or the introduction to forex trading will enable us to know how forex works and how to make money with currency trading on forex.