Constitutional documents are formal texts that outline the fundamental principles and laws of a nation or organization. They serve as the foundation for governance, detailing the structure of government, the rights of citizens, and the responsibilities of officials. Examples include the United States Constitution and the Magna Carta. These documents are essential for establishing legal frameworks and ensuring that power is exercised within defined limits. They often include provisions for amendments, allowing for changes over time to adapt to new circumstances or societal needs. This adaptability helps maintain relevance and stability in governance.