I'm thankful the article does identify it as a Book of Hours, which contains the Liturgy of the Hours (also known as Divine Office): https://en.wikipedia.org/wi

I'm thankful the article does identify it as a Book of Hours, which contains the Liturgy of the Hours (also known as Divine Office): https://en.wikipedia.org/wiki/Liturgy_of_the_Hours https://en.wikipedia.org/wiki/Liturgy_of_the_Hours You will see this Book of Hours depicted in many, many portraits and sacred art across the centuries. For example, the Annunciation to the Blessed Virgin often depicts Mary in prayer, and she is holding a Book of Hours (which is sort of an adaptation of a Jewish psalter, but sacred art actually loves anachronisms, so it's common to show Biblical Jews with a book of Christian Prayer instead.) The Liturgy of the Hours is still required daily of all clergy and religious. The Anglicans are especially fond of public celebrations, such as Evensong, which can be quite beautiful and rather brief, compared to Eucharistic liturgies. A common misconception is that the book depicted with these figures is a Bible. Certainly, many of them could have owned a Bible, but that's a book they'd have on their shelf, not constantly in their hand and at their side throughout the day, every day of the week.