Documentaries are factual genres that document and report actual events using footage, reconstruction, narration or interviews. While the content aims to be factual, documentaries also employ fictional techniques like camera angles, lighting and editing to give the documentary structure and pace. Key documentary features include observation, interviews, dramatization, mise-en-scene and exposition. There are different types like fully narrated, fly on the wall, mixed, self-reflective, docudrama and docusoap documentaries.