The fiftieth anniversary of Helvetica, the most famous of all sans serif typefaces, was celebrated with an excitement unusual in the staid world of typography and culminated in the release of the first movie ever made starring a typeface. Yet Helvetica’s fifty-year milestone pales in comparison with the two thousandth anniversary in 2014 of Trajan’s Column and its famous inscription—the preeminent illustration of the classical Roman capital letter. For, despite the modern ascendance of the sans serif, serif typefaces, most notably Times Roman, still dominate printed matter and retain a strong presence in screen-based communication. The Eternal Letter is a lavishly illustrated examination of the enduring influence of, and many variations on, the classical Roman capital letter.