Adam Aston, over at BusinessWeek, has an article up about everyone’ favorite visualization Guru Edward Tufte.  In it he discusses the “less is more” mantra, and the power of “sparklines” (although their example in the sidebar is in my opinion a bad one), and ends with a fantastic example:

Tufte points to a page from Galileo’s Dialogue Concerning the Two Chief World Systems to contrast the two views of the solar system. Copernicus’ earth-centered rendering is a tangled knot. Galileo’s sun-centered solar model is elegantly simple. Then as now, clean design reflects clear thinking, and has a way of wiping away junky analysis and poor presentation.

via Tufte’s Invisible Yet Ubiquitous Influence – BusinessWeek.