The Four Laws of Perception: similarity, proximity, closure and continuation. http://books.google.com/books?id=gnsOAAAAQAAJ&lpg=PA43&dq=%22four%20laws%20of%20

The Four Laws of Perception: similarity, proximity, closure and continuation. http://books.google.com/books?id=gnsOAAAAQAAJ&lpg=PA43&dq=%22four%20laws%20of%20perception%22%20similarity%20proximity%20closure%20continuation&pg=PA43#v=onepage&q=%22four%20laws%20of%20perception%22%20similarity%20proximity%20closure%20continuation&f=false http://books.google.com/books?id=gnsOAAAAQAAJ&lpg=PA43&#...