The document outlines the theory and history of documentaries. It discusses that documentaries document real events and use evidence and voiceovers to create meaning and emotional responses for audiences. It introduces John Grierson, considered the father of documentary films, who coined the term "documentary" and used the format to bring important social issues to viewers. Finally, it covers five key elements of documentaries according to professor John Corner: observation, interviews, dramatization, mise-en-scene, and exposition.