The document discusses different settings for communication including:
1) The individual as client - barriers must be managed to achieve effective communication.
2) Group/organization as client - they have specific communication needs.
3) Community as client - the message must be relevant and the channel appropriate.
It also outlines various methods (verbal, non-verbal, written, visual) and tools (language, technology) used for communication in settings like government, private sector, civil society, schools, and communities. Effective communication requires understanding these different settings, processes, and tools.