This document discusses different theories of the functions of language. It summarizes four theories:
1. Malinowski's theory categorized functions as pragmatic (active, narrative) and magical.
2. Buhler's theory categorized functions as expressive, conative, and representational based on orientation to speaker, addressee, or other.
3. Britton's theory categorized functions as transactional, expressive, and poetic based on participant or spectator role.
4. Morris's theory categorized functions as information talking, mood talking, exploratory talking, and grooming talking.
The document argues that these theories show language serves to communicate information, express the self, and serve imagin