Story telling is another major concern while making a documentary. Story telling style is the foremost attraction of the audience. Therefore, the style of storytelling has to be selected based upon expected viewership. The story-telling style will be different for 4th grade student and a group of university students. Similarly, if the documentary is about some historical or religious event, its story-telling technique will differ from a documentary on a war. Some of the major story-telling styles are; chronological, thematic, juxtaposition, recreation/ drama, no-narration, essay, personal point of view etc. Chronological structured documentaries are usually produced for the content related to a character or event. In such cases, where changes in character or event with respect to time have to be described, chronological approach has been used. The Day After Trinity written by Jon H. Else, 1981, is an example of chronological story-telling. Chronological method of story-telling relates with the arrangement of frames of time, but it is not necessary for the director to follow these frames in sequence. It is totally up to the director from where he wants to enter and exit between the frames of time. It is often more compelling for the audience if the director shakes the frames up and go in reverse sequence. It lets the audience guessing the underlying truth. Sometimes personal point of view is used in story-telling. This perspective is very effective when documentary is based on a personal story or any sensitive issue. Fahrenheit 9/11 written by Michael Moore is a very effective documentary based on personal point of view. Juxtaposition story-telling uses two contrasting elements, such as narratives, memories, images etc. to indicate the factual arguments.