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 |
|
e.g., affordable housing AND urban development |
| OR |
|
e.g., property market OR real estate investment |
| NOT |
|
e.g., commercial real estate NOT residential |
| " " |
|
e.g., the book title: "Global Real Estate Capital Markets" |
| * |
|
e.g., real estate develop* (results will include real estate development, real estate developer, etc.) |
Using Filters
Use filters to narrow your 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.

Access Options
In HOLLIS, there are several ways to access materials:
- Borrow, Renew, and Return Library Materials
- Scan & Deliver allows you to request a PDF copy of an article or book chapter.
- InterLibrary Loan (ILL) allows you to request a copy of the item if it isn't available at Harvard Library.
- BorrowDirect allows you to request items from partner libraries for delivery to Harvard, free of charge.
