A Juris Doctor (JD) is a professional graduate degree in law. It is typically required for individuals who wish to practice law in the United States. The program usually takes three years to complete and covers various areas of law, including contracts, criminal law, and constitutional law. Earning a JD is a crucial step for aspiring lawyers, as it prepares them for the bar exam, which they must pass to obtain a license to practice law. Many law schools also offer opportunities for specialization, allowing students to focus on specific fields such as corporate law or family law.