Book of Hours were prayer books designed for the laity, but modeled on the Divine Office, a cycle of daily devotions, prayers and readings, performed by members of religious orders and the clergy. Its central text is the Hours of the Virgin. There are eight hours (times for prayer ): Matins, Lauds. Prime, Terce, Sext, None, Vespers and Compline. During the Middle Ages, the leaves making up a Book of Hours were written by hand on expensive parchment and beautifully illuminated with jewel-like pigments and gold leaf. These illuminated manuscripts combined the collaborative efforts of an array of highly skilled craftspeople; requiring the joint labors of the parchmenter, professional scribes to write the text in Gothic script, artists to illuminate the pages with decorations, and masterful binders to complete the process.

A very small vellum leaf from Flanders. The text is written in littera textualis, in dark brown ink, with many initials in red or blue. The verso is delicately illuminated with a large initial 'D' in burnished gold leaf and blue pen work filling the margin. The text is from Psalm 50, one of the Seven Penitential Psalms.
A translation of the Latin text: Create a clean heart in me, O God: and renew a right spirit within my bowels. Cast me not away from thy face; and take not thy holy spirit from me. Restore unto me the joy of thy salvation, and strengthen me with a perfect spirit.

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