1. When I was in the lab, I changed the original picture into the streched out image using photoshop.  Then I copied the picture down onto paper by copying what was in each box on the grid.
2. If you transform a photo into a streched out version, it will look messed up if you look at it straight on.  However, if you look at it from another angle, it will look more like the original version of the photo. One of the hardest things to do is add a shadow.  You have to draw a shadow on the morphed image so it will look normal when you look at it from a different perspective.
3. By doing this, we learned about anamorphis.  It was more about perspective and angles than the actual picture.  It also required that you were good at using photoshop.  We just used colored pencils to add value to the pictures.