Texture

The visual or tactile surface characteristics of a piece.
Can come from the paper you use or the use of photographic images of specific surfaces.

Visual Texture The texture that appears form design elements
Layers of text, photography, illustration, and fine art

Tactile Texture The ACTUAL texture that you can feel
The paper that you use (heavy, light, smooth, rough)
Heavier can seem more professional while newsprint can seem cheap