A tutorial on the Book of Hours and an Index to a Selection of Uses is part of the website of the Institute for the Study of Illuminated Manuscripts in Denmark.
See and listen to a series of brief lectures by Roger S. Wieck, Curator of Medieval and Renaissance Manuscripts at the Morgan Library and Museum in New York, on the Prayer Book of Queen Claude of France.
Formerly considered to have been the hour book of Charles the Bold; more recently, of his daughter Marie, Duchess of Burgundy. Commentary volume by Antoine de Schryver.