May 18, 2022

Beginning Next Week: Change in Library of Congress Access to HathiTrust Digital Library to Access Advanced Features

From LC (via E-Mail):

Effective June 1, 2015, the Library of Congress will enhance access to the HathiTrust Digital Library and change the way LC users are authenticated [at LC facilities and remotely].

This change will provide access to advanced HathiTrust features, including the ability to:

  • Download full PDFs of public domain works that appear in HathiTrust
  • Access HathiTrust’s Collection Builder, a tool that helps users create and share personal collections of HathiTrust items for private or public use

To benefit from these improvements, users must have a Library of Congress patron account.

Patron accounts are created automatically for users who obtain Reader Identification Cards through the Library’s Reader Registration service.


While many HathiTrust search and retrieval functions remain available to any user without authentication, access to the full range of HathiTrust services requires authentication.

From any HathiTrust web page a patron can click the LOG IN button, then select Library of Congress from the drop-down menu. The patron is then connected to the Library’s authentication form, which prompts him or her to provide Library of Congress patron information (the first two letters of surname and patron account number).

Note: Becoming a registered reader at the Library of Congress is free to those 16 years or older (you must register in person at the Library of Congress in Washington, DC to obtain a card) who present a valid driver’s license, state-issued identification card, or passport

See Also: Library of Congress/HathiTrust Authentication FAQ

See Also: More About HathiTrust Advanced Features
Includes info about registering for a U. of Michigan “Friend Account.” If you qualify you can access some advanced HathiTrust features.

About Gary Price

Gary Price ( is a librarian, writer, consultant, and frequent conference speaker based in the Washington D.C. metro area. Before launching INFOdocket, Price and Shirl Kennedy were the founders and senior editors at ResourceShelf and DocuTicker for 10 years. From 2006-2009 he was Director of Online Information Services at, and is currently a contributing editor at Search Engine Land.