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Renew Books

  • Books circulate for four weeks and can be renewed five times.
  • Library materials can be recalled at any time which can shorten due dates by up to two weeks.

Online Renewals

All Harvard ID card holders can renew their books online using the new HOLLIS catalog. Click here to renew books online.

(If you hold a Harvard ID card but do not already have an associated password, you can register for one at If you are Harvard faculty, staff or student and do not have a HarvardKey log in, you can claim your HarvardKey at

Renewing In Person

Books may be renewed at the Circulation Desk any time the Library is open. Library hours can be found here.

Renewing by Telephone

Books may be renewed by phone. Call 617-432-2136. You will be asked to provide your ID number and the book barcode. The book barcode can be found either on the back cover of the book or inside the back cover.

Renewing by Email

Books may be renewed by email by providing your Harvard ID number and the title and barcode number of each book you wish to renew in an email message to

Renewing Interlibrary Loan Books

Books that are Interlibrary Loan books from non-Harvard libraries may be renewed through your Interlibrary Loan account online (ILLiad). From the main menu, chose "view/renew" on the right panel, and choose the item to renew.

Call 617-432-2631 with the TN (transaction number) and your Harvard ID number to renew by phone.

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Library Services