Simplicity vs Seeing Space

Question: 

I am enjoying reading your book and doing the assignments. I have some difficulty understanding Simplicity vs Seeing Space. They seem the same and when I look at the sample images it seems that the photos often could go for either one.

Answer: 

This is a very good question. You are right that several of the examples in the book could be used for either assignment.
 
The basic difference between the two assignments is that Simplicity emphasizes the object, and in Seeing Space, the emphasis is on the space itself. Seeing Space is more subtle, because we are so used to looking at objects.