set of painted panels: an arrangement of three or more panels with a painting or carving on each, usually hinged together and used as an altarpiece in a church (a triptych is a polyptych made up with 3 panels)
Grisaille
A method of painting that uses only shades of grey
Artist: Jan van Eyck
Work: Arnolifini Portrait
Date: 1434
Illuminated Maunscript
An illuminated manuscript is a manuscript in which the text is supplemented by the addition of decoration, such as decorated initials
Artist: Rogier van der Weyden
Work: Deposition
Date: 1435
Material: oil on panel
Artist: Limbourg Brothers
Work: "January" from Very Rich Hours (A prayer book)
Date: 1413-1416
Artist: the Limbourg brothers
Work: "October" from Very Rich Hours ( a prayer book)