Foreign Currency Trading For Dummies

foreign currency
In economics, the term currency can refer to a particular currency, for example Pound Sterling, or to the coins and banknotes of a particular currency, which comprise the physical aspects of a nation's money supply.
Paper money and coins from other countries.
(Foreign currencies) You may now view our prices in a range of foreign currencies. However we now only accept British Pounds as payment when checking out. You can pay by debit or credit card and your currency will be automatically converted to pound sterling.

for dummies
For Dummies is an extensive series of instructional / reference books which are intended to present non-intimidating guides for readers new to the various topics covered.

trading
(trade) engage in the trade of; "he is merchandising telephone sets"
The action of engaging in trade
buying or selling securities or commodities
(trade) the commercial exchange (buying and selling on domestic or international markets) of goods and services; "Venice was an important center of trade with the East"; "they are accused of conspiring to constrain trade"