Most tutorials out there for Blender and other 3D applications assume some familiarity with three-dimensional modeling and visualization. Since not all of us have had the privilege of taking a high school technical drawing class, the fundamentals of 3D graphics may be elusive to grasp. This section of the book is intended to introduce newcomers to different techniques used to model the three-dimensional world. It is my hope that this section will help you visualize the world in a new way that you can translate into Blender as well as any CAD or 3D application.
As with any subject, there is a special vocabulary associated with 3D design. Do not fret, for all of these new terms will be highlighted in bold and summarily defined. These will come in handy later when reading other tutorials.