Treasuring Tufte.

• Author: O'Neill, Thomas
• Position: Letter to the editor

With regard to Joshua Yaffa's article on Edward Tufte, "The Information Sage--[May/June 2011], I was a student of Tufte's at Princeton in 1968-70. He was mesmerizing and enormously effective, with the ability to teach liberal arts majors to master regression analysis (done by hand on a mechanical calculator) and to present the results clearly and graphically. He taught me a valuable lesson in his comment on one paper I did that...