Also known as 2D codes.
Uses in Libraries
- Lawrence University Seeley G. Mudd Libraryhas created a QR code information page to help our patrons understand QR codes. We use QR codes to direct patrons to our virtual tour, to electronic music resources, to our mobile web site, to begin text messages to the interlibrary loan office, and more. Take a look at our Flickr page to see all of the ways we use QR codes.
- Boise State University's Albertsons Library uses QR codes to link to its mobile website in its blog and main Twitter page. There is also an informative research guide about QR codes--what they are, how they are being used in Albertsons Library, tips on creating effective codes, and recommended QR code readers/scanners.
- Half Hollow Hills Community Library uses datamatrix codes on end stacks to lead patrons to subject guides on the web.
- ACU Library uses mobile tags in library exhibits to link to songs, videos, websites, and realtime searches of our library catalog. It's a good way to incorporate electronic media with physical items and to make the display more engaging.
- Bath University Library is adding QR codes to catalog records to offer patrons basic info about an item (including location and call number).
- Biblioteca Rector Gabriel Ferraté. Universitat Politècnica de Catalunya uses QR Codes to provide additional information on promotional posters and to provide username and password to users who subscribe to the CLIC Area service (a computer classroom)
- RMIT Library is using QR codes for a contest it is running.
- Ryerson University Library and Archives is using QR codes in its library catalogue and for downloadable audio tours.
- Sacramento Public Library offers a QR code to patrons that will load the library's text message reference service info into the patron's phone. The code can be found on the Text 4 Answers page of the library website and the library's blog. More info at The Civil Librarian.
- University of Huddersfield Library is using them for linking to text messaging reference service, videos, contact info, and, in the catalog records, providing basic info about items. See Andrew Walsh's presentation, "QR codes, text a librarian, and more..."
- The San Diego State University Library is using QR Codes in it's library catalog, on staff directory pages and on research guides.
- Emily Carr University of Art + Design Library is using QR codes in displays and signage.
- Contra Costa Libraries are using QR codes to market audiobooks to people using public transit.
- George Fox University Libraries are using QR codes on DVDs and audiobooks to point users to video trailers, on doors for room reservations and more - see our flickr set of examples 
- Syracuse University Library Learning Commons is using QR Codes on their bookmarks, tabletop signs, and on the flyer advertising their virtual tour - see our set on Flickr .
More Info on QR Codes
Ashford, Robin. "QR codes and academic libraries: Reaching mobile users." College & Research Libraries News, November 2010. 
Rigby, Lex. "QR Codes in Libraries and Higher Education." Just Another Dent in the Damage, 26 March 2009. Web.
Walsh, Andrew. QR tags and mobile 'phones in the library. Web.
Walsh, Andrew. "Extreme makeover: Transforming the face of your Library Service." QR tags and 'mobile phones in the library, 19 October 2009. Web.