Everything You Need to Know About CurrencyHow much money do you have in your piggy bank? Have you ever used an automatic teller machine? How are coins made? Which country uses giant, heavy stones as currency? In Everything You Need to Know About Currency: How Money Works, find out where money comes from, how it is used, what the word economy means, how you can spot counterfeit banknotes, and much more. From the early days of trading furs and tools to modern banking and stock markets, this