Foreign exchange is a broad term referring to the business of international bills of exchange. These bills of exchange take the form of drafts representing an evidence of debt in the form of a negotiable instrument, the drawer or maker constituting the creditor, the drawee the debtor, and the title to such bill being vested in the payee. These drafts take the form of acceptances, often endorsed by acceptance banking companies. When drawn against merchandise exported they are often accompanied by documents—such as the receipt of the transportation company, or bills of lading, certificates of insurance, certificates of inspection, weight, etc. These foreign bills of exchange may be drawn against securities which are sold as merchandise. They may appear as authorized commercial or banking credits or as finance bills.

They may be drawn against actual cash funds or credits in banks, but, whatever they are, they comprise at last merely the order of the drawer or maker upon the drawee or debtor to pay to a payee a certain amount of money in the currency of the country upon which they are drawn, in pounds sterling in London, in pesetas in Spain, in francs in France, in lire in Italy, in dollars in New York. The forms of these bills are well established and can be found in any of the many comprehensive works on international exchange.

These bills may be at sight, payable on presentation, or thirty, sixty, or ninety days; they may be with documents attached or without documents attached; they may be acceptance bills or payment bills. The scope of this book does not permit of an elaborate discussion of the mere forms of such bills or the mechanism employed by the banks in handling such bills or the mathematics of converting one currency into another.