From there we'll learn two different methods for creating isometric objects, one using a grid, and a second using the scale, shear and rotate tools in Illustrator. Along the way, we'll learn how to save time by incorporating actions into our workflow. Next, we'll jump in and begin designing a top down, two dimensional view of our map. From there, we'll learn what an orthographic drawing is and how it can help us to construct buildings on our map. We'll wrap things up by adding some final details to our map to really make it shine.

Home Page - http://www.digitaltutors.com/tutorial/380-Creating-3D-Maps-Using-Isometric-Projection-in-Illustrator