Communication for Development (C4D) is all the different types of communication that need to take place in societies if sustainable democratic development is to occur. The approach to Communication for Development (C4D) has evolved over the years. Initially developed after World War II as a tool for diffusion of ideas, communication initiatives primarily involved a one-way transmission of information from the sender to the receiver. This includes large-scale media campaigns, social marketing, dissemination of printed materials, and 'education-entertainment'. Since then, C4D has broadened to incorporate interpersonal communication: face-to-face communication that can either be one-on-one or in small groups. This came alongside the general push for more participatory approaches to development and greater representation of voices from the South. The belief is that while mass media allows for the learning of new ideas, interpersonal networks encourage the shift from knowledge to continued practice. Communication for development has thus come to be seen as a way to amplify voice, facilitate meaningful participation, and foster social change. The 2006 World Congress on Communication for Development defined C4D as a social process based on dialogue using a broad range of tools and methods. It is also about seeking change at different levels including listening, building trust, sharing knowledge and skills, building policies, debating and learning for sustained and meaningful change. Such two-way, horizontal approaches to communication include public hearings, debates, deliberations and stakeholder consultations, participatory radio and video, community-based theatre and story-telling, and web forums. It encompasses access to and exchange of information, dialogue, creation of knowledge and open access to knowledge, development communication, strategic communication, participatory communication, expressive culture, media, information and communications infrastructure and technologies. C4D recognises that communication processes often reflect power relations and aims to address this by enabling people's capacities to understand, negotiate and take part in decision-making that affects their lives. The growing interest in this sector lead to the first World Congress on Communication for Development organized by the FAO ComDev Team, The World Bank and The Communication initiative in Rome, Italy, in October 2006. Communication for Development is built around four axes: Com4Prom: Communication for Promotion promotes development aid in donor countries to justify how and why development aid resources are spent. Com4Imple: Communication for Implementation facilitates the implementation of development aid on developing countries by explaining development programmes to local populations. Com4Power: Communication for Empowerment gives power to local population to report on the implementation