There are 6 main types of documentaries: fully narrated, fly on the wall, mixed, self reflective, docu-drama, and docu-soap. Fully narrated documentaries use voiceovers to provide context and explanation. Fly on the wall documentaries involve no interviews or narration, purely observing real situations as they unfold. Mixed documentaries combine interviews, observations, narration, and archive footage to inform viewers. Self reflective documentaries acknowledge the filmmaker's presence and may involve the filmmaker hosting. Docu-dramas reconstruct factual events or situations in a dramatic format. Docu-soaps document real people in particular occupations or locations over a period of time.