1001 - 1099
Signs . Semiotics . Language

1501 - 1599
Culture . Technology . Ideology . Social Construction of Reality

3001 - 3099
Information . Rules . Codes

4001-4099
Interpersonal Communication . Speech . Relationships

6001-6099
Mass Communication . Text . Media

9001 - 9099
Fundamental Definitions: The Communication Process

9501 - 9599
Fundamental Definitions: Self and Society