Searching in HOLLIS

 

HOLLIS is Harvard Library's main search tool. It searches the Harvard Library catalog and billions of citations from external sources. You can use HOLLIS to find books, articles, media, and more

To learn how to search HOLLIS, visit the HOLLIS User Guide.


Effective Searching 

Use the search operators below to create more precise and complex searches. For more tips, visit Using Search Operators.

AND
  • Used to narrow your search
  • All terms connected are present in the results
e.g., ecosystem AND conservation
OR
  • Used to broaden your search
  • Either of the terms can be present in the results
e.g., landscape OR gardening
NOT
  • Used to exclude terms from your search
  • Ignores terms that may be typically in your search
e.g., pollution NOT waste
" "
  • Searches for your terms as an exact phrase
e.g., the book title: "Landscape Architecture for Sea Level Rise"
*
  • Broadens your search
  • Searches for multiple variants of a word (singular/plural/conjugations)
e.g., garden*  (results will include gardens, gardening, gardeners, etc.)

 

Using Filters

Use filters to narrow our search results. You can filter your search to show results with a specific date range of the publication, resource type, location of library collection, subject, author/creator, language, form/genre, and more. For more tips, visit Filter My Results

Example search with green box around the filters section in HOLLIS.

 

Access Options

In HOLLIS, there are several ways to gain access to materials: