All the motifs and figures which constituted the design are made from composition, contact, rotation, and balance of the lines.

If the lines along their route make angles the design is in geometrical style. But if the lines in their course don't make angles, the design will be classified in the curvilinear group.

Should the lines of the design in some part of their route make angles and in others make roundish movements the design belongs to the stylized group.

Most Persian rugs are decorated with medallions and corners. The medallions are always located in the center of the Layout and the shape may be round, oval, rhomboid, or radial of different sizes which vary according to the taste and custom of the weavers. Instead of a single medallion, we may find two or three medallions on the central line of the rug.

Usually, on the top and bottom of the medallion, there are two pendants, one-fourth of the medallion shape or something of a similar form when repeated in the corners of the field.