The commercial world; the distribution of goods from the producer to the consumer; the retail trade; the wholesale trade; the documentation of trade; consumer credit; consumer protection; business units - the private sector, the public sector; the monetary system; the banking system - the retail banks, other financial institutions; the capital market; the arithmetic of business; communications - the Post Office, telecommunications; communications - advertising, transport; business risks - insurance; international trade - exports and imports; the balance of payments; the government and commerce; new technology and commerce.