How to...

Choose a Search Tool

Just like how Google offers Google Scholar and Google Images, the library offers different search tools for different types of research.

The library has different search tools for different types of materials — like books, articles, data, digitized items, and more. Anyone can use these tools for free.

Throughout this guide, we'll use the example search of "Boston" to illustrate the types of results that each search tool can generate.

Library Materials

Use HOLLIS, the library’s catalog, to search for all library materials.

When you use HOLLIS, you'll notice a couple of options in the dropdown next to the search bar. "Catalog & Articles" searches the catalog plus billions of item descriptions. Choosing "Library Catalog" from the dropdown will limit your results to Harvard materials only. You can also limit your results to materials available online by selecting "Online" from the "Show Only" options. 

Catalog & Articles in HOLLIS 

When you search Catalog & Articles, your results will include books, online articles, ebooks, book chapters, archival materials, media, maps, and more.

Search for "Boston" in HOLLIS Catalog & Articles and your results will include items like:

  • Boston Magazine
  • books on the history of the city
  • tourist guide books

Library Catalog in HOLLIS

HOLLIS Library Catalog includes only Harvard owned materials. You’ll find books, ebooks, archival materials, media, maps, and more.

Search for "Boston" in HOLLIS Library Catalog and your results will include items like:

  • maps
  • ebooks on the history of the city
  • tourist guide books

Archival Materials

Digitized Collections

Open Access Research

Geospatial Data

Use Harvard Geospatial Library to search for and download geospatial data. You’ll find data sets available from around the world at various scales, from global to local, complete with metadata.

Search for "Boston" in Harvard Geospatial Library and your results will include items like:

  • Boston maps across time
  • site plans for buildings
  • land use plans

Tip for the search: To activate the map and limit results to the area seen within the map viewer, select "Click to wake" and have "Search when I move this map" checked.

Explore Collections

Explore featured collections.