You will be able to Create a 3D object using the 3D tool
You will be able to modify a 3D object using the 3D tool
Watch:
Watch: Moving into 3D World
Watch: 3D Text and 3D Objects video
Watch: Mesh Tool
Read: Chapter 11 in your book.
Create: Start thinking about your Final Project
To edit your 3D Object after you deselect it. Go to Appearance Palette. Double-click on the Effect
For 3D type, first you must Create Outline (under the Type Menu) then select Effect - 3D - Extrude & Bevel