Extension education as a discipline has grown into a body of knowledge that provides a philosophy, principle and methods of planning, management and effective communication of useful technology to bring about desired changes in the behaviour of target groups and improve their standard of livings. Thus one of the basic management functions of a good extension system is to improve its quality of Extension Contact, which in turn means establishing repeated contacts with the clientele, building confidence, communicating improved technology and providing motivation for its adoption. 

The book emphasises to provide a comprehensive reading materials regarding models of communication and adoption behaviour for Extension professionals, students and researchers. The book is divided into 13 Chapters each dealing with different aspects in a logical sequence.

The book deals with conceptual issues of Communication, Behaviour, Information, Communication behaviour, Adoption and Adoption behaviour. It also deals with concept of models and various models on communication and adoption behaviour. Studies on communication behaviour and adoption behaviour by previous workers have also been delineated in separate chapters. An empirical study on communication and Adoption behaviour have been dealt in detail.