The document discusses different forms of organization for structures: centralized form, linear form, radial form, clustered form, and grid form. It provides examples and characteristics for each form. Centralized form has a dominant central element surrounded by secondary elements. Linear form arranges elements in a line. Radial form combines centralized and linear forms with elements radiating from a central point. Clustered form uses proximity to group similar, randomly arranged forms. Grid form creates a regularly spaced, modular pattern through intersecting lines.