Today students are facing many competitive exams in which many questions related to agriculture extension is used to ask. All these examination are mostly objective based and students always look for study material that is ready to use and easy to grasp. The present book “Agricultural Extension Explorer” has been prepared in most simple and lucid manner. The main objective of this book is to help the reader to quickly grasp the facts comprehensively and systematically from various branch of agriculture extension like communication, extension education, programme planning, management, social research methodology, adult education, sociology and psychology. Hope this book would be highly useful for those appearing in the competitive examinations such as Agricultural Research Services (ARS), National Eligibility Test (NET), State Eligibility Test (SET), Banking, Civil Services and other related examinations. Beside this, it will also useful for fellow teachers, researchers and development officers for references and easy answering of many complicated questions.