A documentary is a non-fiction film or television program that aims to provide a factual report on a particular subject. It often includes interviews, archival footage, and real-life events to present information in an engaging way. Documentaries can cover a wide range of topics, such as nature, history, social issues, and biographies of notable figures like Albert Einstein or Martin Luther King Jr.. The primary goal of a documentary is to educate and inform the audience, often encouraging them to think critically about the subject matter. They can vary in style, from observational to expository, and may include elements of storytelling to enhance the viewer's understanding and emotional connection to the topic.