Book of Hours Exhibition, University of Pennsylvania - Books of Hours in the collection of Lawrence J. Schoenberg. Images and commentary. www.library.upenn.edu/special/gallery/schoenberg/schoenberg_bohtext.html
Books of Hours - An introductory essay by Eric Marshall White. fll.smu.edu/languages/latin/advent2000/bridwell/bridwell1.html
Books of Hours in the J. Paul Getty Museum - Catalogue entries for thirteen Books of Hours, with numerous images. www.getty.edu/art/collections/presentation/p42_360-1.html
Books of Hours in the Wellesley College Library - A selection of images from five different Books of Hours, with a brief introduction. www.wellesley.edu/Library/SpecColl/BookOfHours/bookhome.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. library.wustl.edu/units/spec/exhibits/illuminated/index.html
Hypertext Book of Hours - The complete text of a Book of Hours for the Use of Rome, in Latin and English. Based on a 16th-century English Primer. members.tripod.com/%7Egunhouse/hourstxt/hrstoc.htm
Index to a Selection of Uses - A scholarly index to local variations in the texts of Books of Hours. www.chd.dk/use/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. 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. www.luc.edu/publications/medieval/vol6/6ch1.html