All Models are described by the arrangement of it's Vertices, Edges, and Faces.
It is the placement of the Vertices and arrangement of Edges that give a model it's shape and form. How the Faces are painted and textured gives a model it's realistic appearance.
This section is essential reading for anyone serious about model building. However knowledge about the Draw Tool and 3D Plot Tool is assumed.
Experiment with these tools before reading the rest of this topic!