Crewelwork is a type of embroidery that uses a thick, twisted yarn called crewel wool. It typically features decorative stitching on a fabric background to create intricate designs, often depicting floral or botanical patterns. This technique is traditionally done using a variety of stitches to build texture and depth in the artwork. Crewelwork has roots in English needlework from the 17th century and is often associated with historical and folk art embroidery.