Contents INTRODUCTION AGRICULTURAL EXTENSION: A STATEMENT OF PRINCIPLES 2 1. WHAT IS COMMUNICATION? 3 An Illustration The Main Considerations A Communication Model The Characteristics of Good Communication 2. THE FRONT LINE EXTENSION WORKER 13 Working Within the Training and Visit System A Competency Analysis A Competency List for the Communication Aspects of Extension Work 3. FARMERS 21 Pressure Points The Adoption Curve 4. THE LEARNING PROCESS 33 The Crucial Conditions for Learning Adults as Learners Implications 5. MODELS OF EXTENSION COMMUNICATION 49 Three Modes of Communication Choosing the Mode