The altar has always been considered an appropriate site for the display of Christian images during worship, yet it was during the Middle Ages in Europe that the most attention was given to the pictorial decoration of altars. With many photographic examples included, the thirteen essays presented here on medieval liturgical art analyze the relationship between worship and image, and how an invisible God has been portrayed over the many years by His worshippers. (Series: Publications of the National Museum Studies in Archaeology & History - Vol. 23) [Subject: History, Medieval Studies, Religious Studies, Art, Art History].