FOLIO A look at page numbering. The use of generous margins is also nice. I like the mystery of the numbers though. The human eye only reads the top half of a number, so these remain readable, whilst becoming a designerly feature in itself.
Times New Roman by Pedro Javier Arbelaez. This poster in particular is a favorite of mine. I assume this poster goes through the history of Times New Roman. What's great is that Times New Roman is the only typeface used here.