Synopsis This book has been specifically written to serve as a text book of extension education for undergraduate and post graduate students in agriculture, home science, veterinary and animal science, fisheries, forestry, food technology, dairy science, horticulture, sericulture, etc. It shall also serve as a handbook in the relevant government departments, banks, cooperatives, voluntary and NGOs, KVKs, etc. in respect of their extension works. Persons engaged in rural management, transfer of technology, journalism and media management, human resource development, distance education, non-formal education, rural development studies, youth works, social works, etc. shall find the book useful. In fact the book shall be extremely useful wherever there is need for changing the behaviour of the people by educating and motivating them. The book shall help the students, teachers, research workers, extension agents, planners and administrators to remain better informed.