Definitions for "Book of Hours"
The main prayer book used in medieval Europe was divided into eight sections, or hours that were meant to be read at specific times of the day. Each section contained prayers, psalms, hymns, and other readings intended to help the reader secure salvation for himself and his departed loved ones.
A very popular type of text during the Middle Ages used for private devotions. It contains a calendar as well as psalms, prayers, hymns and biblical readings for recitation during the eight canonical hours of the day, known as the Hours of the Virgin.
A prayer book intended for lay use in private or family devotions. Books of hours typically contain a compendium of prayers and devotions dedicated to the Virgin Mary and recited or sung at the canonical "hours" (eight set times during the day). To this core were appended other elements such as a calendar, penitential psalms, litanies, suffrages, etc. Elaborate versions contain a full cycle of miniatures as well as involved marginal decorations. Books of hours form the most popular and abundant of all surviving medieval manuscripts.