"Presentations largely stand or fall on the quality, relevance, and integrity of the content," says Edward Tufte, professor emeritus at Yale University. Bullet points and Roman numeral outlines are ...

Thanks for your informative piece on the Roman numerals on the Tomb of the Unknowns. Now can you explain to me why the 4 on my watch is denominated by IIII instead of IV, a fact I had not noticed ...