This document discusses genres, codes, and conventions in media and information languages. It defines key terms like genres, codes, conventions, messages, audience, producers, and other stakeholders. Specifically, it explains that genres can be recognized by common distinguishing features like codes and conventions. It also outlines different types of codes, including technical codes involving camera techniques, symbolic codes showing subsurface meanings, and written codes using language and text layout. Conventions refer to standard norms governing media behavior.