It is so important to communicate information clearly. Today when people use the term data visualization they are generally referring to computer software that creates easily-to-understand graphics.
But, sometimes I’m blown away by the creativity of the graphics in old books. I absolutely love a picture in a hundred-year-old home economics book that compares 100 calorie portion sizes for milk and cream.
I knew that skim milk has fewer calories than whole milk— but I’ve never been quite sure how to use that information to answer practical questions like: If I switch from whole milk to skim milk, how much more skim milk can I drink without gaining weight?
Now I know the answer–about 1/2 cup more. Of course, this picture has limitations–Where’s the 1% and 2% milk?