Tapestry (also known as Gobelin) is a form of textile art, traditionally woven by hand on a loom. Tapestry is weft-faced weaving, in which all the warp threads are hidden in the completed work, unlike cloth weaving where both the warp and the weft threads may be visible. In tapestry weaving, weft yarns are typically discontinuous; the artisan interlaces each colored weft back and forth in its own small pattern area. It is a plain weft-faced weave having weft threads of different colors worked over portions of the warp to form the design. Most weavers use a natural warp thread, such as wool, linen or cotton. The weft threads are usually wool or cotton but may include silk, gold, silver, or other alternatives.