CRL has a large collection of international serials including rich historical collections, as well as current subscriptions to more than 7,000 titles rarely held in North American libraries, including the following categories:
- Foreign-language science and technology periodicals
- US trade and industrial journals
- South Asian serials
- Southeast Asian serials
CRL has vast holdings of newspapers from all regions of the world. Newspaper holdings include over 16,000 titles, more than 10,000 of which are published outside the U.S. CRL endeavors to collect extensive complete runs of newspaper titles.