Other
U.s. Department of the Treasury: New Money
Every seven to ten years, the United States redesigns and improves the security features of its currency. At the New Money website, learn about the newest redesigned banknotes. Find animated tutorials, interactive quizzes, and a full...
Federal Reserve Bank
Federal Reserve Bank of Atlanta: Spotting Counterfeit Currency
This resource explains how to detect counterfeit money, what to do if you receive it, and the laws against it.
Other
Indigo Image: Counterfeit Detection
Learn about what counterfeit printing is and how it is detected. Also learn about measures that are taken to prevent counterfeiting.
Council for Economic Education
Econ Ed Link: Bill, Are You Bogus?
In a barter system, people have to trade goods and services for other goods and services. In an economy that produces millions of goods and services, barter is very difficult. Think of all the stuff (goods and services) you have.