I find these visualizations to be very compelling, as they convey important messaging in a palatable and even artistic way. Admittedly, I struggled to think of my favorite visualization for this post because many that I encounter in research articles are visually overwhelming, not intuitive, and/or sometimes boring. I recognize that complex issues often mandate complex mapping, but I really appreciate when messaging -- especially on the magnitude/scale of something -- can be conveyed in a comparative framework like these two.