This document provides an introduction to critical media theory through semiotics, which is the study of signs and how they create meaning. It discusses key concepts in semiotics, including:
1. Ferdinand de Saussure's contributions to understanding language as a system of relational signs.
2. The components of a sign including the signifier, signified, and signification.
3. How codes organize signs into meaningful systems by correlating signifiers with signifieds.
4. Additional concepts like syntagms, paradigms, denotation and connotation that are used in analyzing how signs generate meaning.
The document uses examples and exercises to demonstrate how these semiotic