This document discusses different narrative structures for documentaries: - A circular narrative begins and ends at the same point, providing closure. It follows a similar structure to an essay. - A closed narrative leaves no loose ends and answers all questions clearly. Examples given are "Battlefield Britain" and "Pain, Pus and Poison". - An open narrative leaves questions unanswered, allowing more interpretation. "Universe" is used as an example that leaves the future unknown. - A linear narrative follows a chronological timeline of events. Good for history topics like "The Beginning and The End".