This document provides an overview of key media concepts related to audience, institutions, representation, language, codes and conventions, and narrative theory. It defines audience as the recipients of a media text and discusses several theories of how audiences interact with media, such as the hypodermic needle theory. It also defines institutions as organizations that produce and distribute media, and representation as the ideas and identities constructed in media texts. The document then examines media language and various codes and conventions used in different genres. Finally, it summarizes several narrative theories including those proposed by Propp, Todorov, and others.