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HOLLIS User Guide

HOLLIS is the library's main search interface. It includes the Harvard library catalog as well as a huge (and more heterogeneous) collection of citations for a variety of materials, including articles and book chapters.

Search Operators

Note: the following search operators can be used in HOLLIS, HOLLIS Images, and Databases.

 

Exact Phrase

Use quotation marks to search for your terms as an exact phrase. Great for title searches.

"capital in the twenty-first century"

Boolean Connectors

AND, OR, and NOT must be in all caps to be recognized as operators.

NSA OR "National Security Agency"

cellular NOT phone

Order of Operations

Use parentheses to define the order of operations.

("Affordable Care Act" OR Obamacare) AND "birth control"

Wildcards

? matches a single character and * matches multiple characters.

feminis?

gene* therapy