The Elements of Design : Shape
Shape , as a basic element of design, is an area defined by some or all of the other elements of design; including line, value, color, and texture.
Categorically, shapes are distinguished in only 2 basic groups, organic (curvilinear) and geometric (rectilinear).
David Lauer, the author of Design Basics, says “Design is basically the arrangement of shapes.”
Shape Classifications
Organic curvilinear
Rectilinear geometric