This document discusses key concepts in media, including how meaning is created through symbolic and technical codes. It provides examples of symbolic codes like mise-en-scene, costumes, and objects/props. Technical codes include different camera shots, angles, movements, and composition. Stuart Hall's reception theory is explained, discussing preferred, negotiated, and oppositional readings by audiences. Color symbolism in media is also covered, with examples of how red, green, and blue are used and what they may represent.