Conference literature is an essential component of international academic exchanges. New theories, proposals, and significant discoveries and inventions are often first presented and discussed at conferences. The Conference Proceedings Citation Index (CPCI) has been indexing conference literature from over 200,000 international conferences since 1990, with sources including monographs, journals, reports, series publications by scholarly associations or publishers, and preprints. CPCI covers all disciplines in the fields of science and technology, social sciences, arts, and humanities, and includes literature in both English and non-English languages.