This document provides a summary of UNESCO's efforts to implement the outcomes of the World Summit on the Information Society (WSIS) over the past 10 years and build inclusive knowledge societies. It describes UNESCO's work in areas such as access to information, education, sciences, cultural diversity, and media. It also outlines UNESCO's role in coordinating WSIS follow-up activities among UN agencies and facilitating multistakeholder cooperation. The report concludes by recommending that inclusive knowledge societies and ICTs be prioritized in the new post-2015 development agenda.