The book addresses all possible information regarding Communication, Information and Communication technology, Diffusion of Adoption, which is the need of undergraduate, postgraduate and research students of traditional Universities, Agricultural Universities, Home Science Colleges, Non-Government Organizations and persons working through the process of social development. Designed as a text for the understanding by the client, it is not to the retroflex already available reading material but to elucidate certain basic questions and prevailing confusions relating to Communication, ICT, and Diffusion of Adoption. The present book would also be the concerns of students, teachers, and activists. The book tries to provide an update and ready to use materials.