We have resumed some on-campus services, including book pickup, virtual consultations, and fulfilling scanning/digitization requests. Many library materials are available online, but our buildings remain closed until further notice.


HOLLIS for Archival Discovery

Catalog for exploring collection guides, finding aids and inventories to locate unique materials in Harvard's special collections and archives.


HOLLIS for Archival Discovery (previously OASIS) is specifically designed for finding special collections and archival materials at 30 Harvard repositories. 

These materials include primary sources in a variety of formats such as letters, memos, photographs, film and video, three-dimensional objects, and digital content.

Not all archival and special collections at Harvard have a finding aid, and are therefore not searchable in HOLLIS for Archival Discovery. To find other materials in special collections, use HOLLIS.

Launch HOLLIS for Archival Discovery