A quarter, often referred to as a "quarter dollar," is a coin in the United States worth 25 cents. It is one-fourth of a dollar, which means that four quarters make up one dollar. The quarter is commonly used in everyday transactions and is easily recognizable due to its distinctive size and design. The quarter features various designs, including the iconic image of George Washington on the obverse side. Over the years, the U.S. Mint has released special editions, such as the 50 State Quarters program, which showcases unique designs representing each state.