Columbia International Affairs Online (CIAO) publishes a wide range of scholarship that includes working papers from university research institutes, occasional papers series from NGOs, foundation-funded research projects, proceedings from conferences, books, journals and policy briefs.

CIAO is also a widely-recognized source for teaching materials including original case studies written by leading international affairs experts and course packs of background readings for history and political science classes. CIAO also contains maps, statistical data on countries as well as a tool for comparing data between countries.

Columbia International Affairs Online (CIAO) is a comprehensive source for theory and research in international affairs.