This document discusses different types of codes and conventions used in media. It describes symbolic codes, technical codes, and written codes which use symbols, technical elements, and language to convey meaning. It also outlines form conventions, story conventions, and genre conventions - the common structures and narrative patterns expected within different media forms and genres that help audiences understand and engage with a work. Overall, the document provides an overview of the symbolic, technical, and structural elements that media relies on to effectively communicate information and stories.