Painted Prayers: Books of Hours from the Morgan Library
- Web site of an exhibition at the J. Paul Getty Museum.
- http://www.getty.edu/art/exhibitions/painted_prayers/homepage.html

Book of Hours Exhibition, University of Pennsylvania
- Books of Hours in the collection of Lawrence J. Schoenberg. Images and commentary.
- http://www.library.upenn.edu/exhibits/rbm/schoenberg/schoenberg_bohtext.html

The Medieval Bestseller
- Online version of an exhibition of Books of Hours in the Getty Museum.
- http://www.getty.edu/art/exhibitions/books/

Books of Hours and the Transition to Print Culture
- An online essay comparing printed books of hours with their manuscript precedents.
- http://www.lib.virginia.edu/rmds/collections/gordon/hours/index.html

Books of Hours in the Koninklijke Bibliotheek, The Hague
- A general introduction to Books of Hours, with links to hundreds of high-quality images from manuscripts in the Koninklijke Bibliotheek.
- http://www.kb.nl/kb/manuscripts/introduction/introduction5.html

Franciscan Books of Hours from Italy in the Newberry Library
- Scholarly essay on three late-15th-century Italian Books of Hours, by Paula Hutton.
- http://www.luc.edu/publications/medieval/vol4/hutton.html

Depicting Devotion: Illuminated Books of Hours from the Middle Ages
- An on-line exhibition of Books of Hours in the collection of the Department of Special Collections, Washington University Libraries, St. Louis.
- http://library.wustl.edu/units/spec/exhibits/illuminated/index.html

Leaves of Gold: Books of Hours
- Images and catalogue entries for nineteen books of hours. Part of an exhibition of illuminated manuscripts from Philadelphia collections.
- http://www.leavesofgold.org/gallery/boh/

Sacred Image and Illusion in Late Flemish Manuscripts
- Scholarly essay on the decoration of late-15th- and early-16th-century Books of Hours from France and Flanders, by Robert Calkins.
- http://www.luc.edu/publications/medieval/vol6/6ch1.html

Books of Hours in the Wellesley College Library
- A selection of images from five different Books of Hours, with a brief introduction.
- http://www.wellesley.edu/Library/SpecColl/BookOfHours/bookhome.html

A Few Minutes on Books of Hours
- A introductory essay by Patrick Haynes.
- http://www.candesign.com/pwhaynes/

Hore Beate Marie Virginis - Index to a Selection of Uses
- A scholarly index to local variations in the texts of Books of Hours.
- http://www.chd.dk/use/

Books of Hours: Introduction and Tutorial
- Erik Drigsdahl's guide to the scholarly study of Books of Hours.
- http://www.chd.dk/tutor/