Andrew Sheldon approached his visualization primarily as a timeline. Starting in the 1400’s with the invention of the printing press, he presents events in each of the major design domains right up to Steve Job’s passing. Events are color-coded and linked to their domains with lines. Domains are sized based on typical salaries, and arranged so as to show interrelations by overlap. Color bars on the inside of the circle reinforce the introduction of each domain. Design methods are listed and explained on the left using color coding to attribute them to the domains that use them.
There could have been a better selection of events with more time for research, and the treatment of the methods was not given the same attention as the rest of the map, but those are minor drawbacks that can be easily fixed with another iteration. It’s a well conceived piece and quite beautiful.