The PAHO Headquarters Library and Information Services supports the work of the Organization and provides a wide variety of professional and technical reference and information services covering a broad range of subject areas within the biomedical and public health field, including, historical information. It also collects, organizes, preserves and disseminates regional information produced by PAHO, both bibliographic and in full text, besides offering a selected collection on related health subjects affecting the people of Latin America and the Caribbean.

The Library's collections are referenced in its electronic PAHO/HQ Online Library Catalog, accessible through the Web.