This document discusses texture in design and its visual, tactile, and audible effects. It defines texture as the nature of a surface's feel and appearance. Coarse textures make areas look larger while smooth surfaces seem to advance figures and make colors appear brighter. Texture is considered a design element because it plays a major role through its visual, tactile, and sometimes audible qualities. The document categorizes textures as rough/matt, rough/glossy, smooth/matt, and smooth/glossy and notes the moods each conveys. It also contrasts texture properties like smooth and rough, glossy and matt, limp and crisp.