For us folks who like to stay Free and use the Blender 3d program over every other costly options!
Vertices, Edges & Faces, Selecting Vertices, Selecting Edges, Selecting Faces, Vertex - Edge - Face Menus & Search, Subdivide, Extrude Part 1, Extrude Part 2, Duplication, Mesh Smoothing. All credit for this set of video tutorials belongs to Neal Hirsig.