This document discusses several codes and conventions that are commonly used in documentaries. These include using real, unaltered footage to convince audiences of authenticity; employing techniques like natural sound and lighting to create a sense of realism; incorporating archive media and interviews with experts to provide context and information; and utilizing text, sound, mise-en-scene, and reconstructed scenes to effectively guide audiences and portray moods, environments, and events. The goal is to inform audiences in a way that feels genuine and engaging.