J. Paul Leagans (1963) proposed a communication model specifically tailored for extension work consisting of 6 essential elements:

• Communicator (Sender)
• Message (Content)
• Channel (Transmission medium)
• Treatment of message (How the message is handled/presented)
• Audience (Receivers/Farmers)
  6. Audience Response (Action, feedback, or adoption by the listeners)

Communication is defined as the interactive two-way process by which two or more people exchange ideas, facts, feelings, and impressions in ways that each gains a common understanding of the message. In the context of agricultural extension, sharing information and knowledge between change agents and farmers is termed communication.

Principles of effective communication include clarity of message, brevity, completeness, two-way interaction (feedback), active listening, empathy, and simplicity of language. The use of 'Technical Jargon' (complex scientific terminology unfamiliar to rural audiences) is a major semantic noise and barrier to communication, NOT a principle of effective communication.