Isometric: Perspective

Top View: Parallel Projection

Isometric: Parallel Projection

Isometric: Hidden Line

Birds Eye View: Perspective

More to know....

I want to know more about some of the different things that you can do with photoshop and illustrator and more about all of the different tools.  The only thing about Autocad that I would like to know more about is how to use the mac version of it since it is slightly different than the regular one.