This is the ninth volume of the annual Internet Governance Forum (IGF) proceedings produced by the IGF Secretariat. It contains an overview of the preparatory process, discussion at the meeting, as well as points of convergence and divergence and any recommendations that were suggested during discussions. The Publication reference materials from the IGF 2014, and contains a summary of documents and publications that were launched at IGF 2014 or produced during the meeting itself. 1. Message from Under-Secretary-General Mr. Wu Hongbo -- 2. Introduction and Acknowledgements -- 3. Introduction by the Host Country, Republic of Turkey -- 4. Chair’s Summary -- 5. Preparations for IGF 2014 -- 6. A Summary of Discussions in Istanbul -- 7. Taking Stock of IGF 2015.