Drake University and Des Moines Area Community College are locked in a legal battle over the letter “D.” The community college rebranded last year, changing its logo to a simple, block-style “D.” ...

When it comes to campaign design, using just a letter or two is in. The most memorable letter-as-logo is Barack Obama's "O," but before him, Hubert H. Humphrey (D) used a triple "H" in 1968 ...

In 2012, the logo was changed again, turning the “D” into a page peeling back to reveal the “C” — a somewhat controversial design ... to block DC letters surrounded by a simple circle.