A broad understanding about money is necessary for every citizen of the world. A class in economics cannot give one that. There is widely distributed information online which have summarized the concept about money.

See also:

Hidden Secrets of Money – What is Real Money?
Hidden Secrets of Money – Why is There Inflation and Imbalance of Wealth?
Hidden Secrets of Money – The Hidden Truth about Money
Hidden Secrets of Money – How to Make Yours
Hidden Secrets of Money – World Rich List by Country Natural Resource Reserves