3D design work. well that is why you clicked isnt it?
The likelyhood is that you fall into one of 2 camps when it comes to 3D Design. You either know what it is or you do not... Let us assume the latter.
3D design is quite far reaching whether it is 3d printing and rapid prototyping or designing a new kitchen or even game design.
3D design work starts with a model.
This model starts from a simple cube which is moulded and sculpted into a new form. From there the model can be printed on a 3d printer or can be kept inside the computer to be digitally "painted" and brought into computer games.
Product Design
In modern advertising it is also not uncommon to create a 3d version of the product to use as advertising material giving full control over lighting and shooting the item. in many cases the item is so realistic that the end user is unable to tell the difference between whaat is real and what is not.