What’s a typeface?

Great, easy to understand explanation of the difference between a typeface and a font by Jon Tangerine and the evolution of the term font.

“So these days, even people who understand clearly what the word “font” means have been known to use it to just describe a variant like Georgia Italic, or Helvetica Bold Condensed Oblique without reference to a particular size. That seems like a fairly logical evolution of the term to me.”