This is the poster version of comic #980, which is a guide to money. It started as a project to understand taxes and government spending, and turned into a rather extensive research project. With upwards of 200 sources and 150,000 tiny boxes, it's best appreciated in poster form. The 36"x24" high-quality poster print allows you to stand back and, all at once, take in the entire world economy.
If you want an even bigger version, you can also buy the extra large 72"x48" version. This version provides a six-foot-wide mural view of the chart, allowing you to clearly read even the finest details.