Paper money is a type of currency made from paper that people use to buy goods and services. It usually comes in different denominations, like one-dollar bills, five-dollar bills, and twenty-dollar bills. Each bill has unique designs, colors, and security features to prevent counterfeiting. Unlike coins, which are made from metal, paper money is lighter and easier to carry in wallets or pockets. It represents a promise from the government that it can be exchanged for value. Over time, many countries have adopted paper money as a standard form of payment, making transactions more convenient for everyone.