The document discusses different types of documentaries including fully narrated, mixed, fly on the wall, docudrama, docusoap, and self-reflective. It provides details on the key features and examples of each type. Documentaries aim to document reality through observation, interviews, dramatization, and exposition in order to inform, investigate, educate, and entertain audiences on factual subjects. Pioneering documentary maker John Grierson coined the term documentary and defined it as the creative treatment of actuality.