I chose the Trachea, bronchus, and long cancer: white males; age-adjusted rate by county 1950-1969 map. The image does what it says, tells me where there are different rates of cancer from 1950-1969 in white males. I don’t know what the population is of each county. Maybe it could draw lines or some sort of pattern to illustrate degrees of the population?
I can’t think of designs where I think of the look more than the information any off the top of my head. It has happened, I just can’t remember what they were for. Usually when it does happen it’s because I don’t understand what the information is supposed to day.