Columbia International Affairs Online (CIAO) is a source for theory and research in international affairs. It publishes scholarship from 1991 onward 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 a source for teaching materials including case studies written by leading international affairs experts, course packs of background readings for history and political science classes, and special features.