Now go outside and look at the sky.
Being slightly bored between the holidays has its advantages... I was idly browsing through the cinema listings when I stumbled over this little gem: Helvetica
It's a documentary not just about the font, but also about typography, print design and urban environments. It's admittedly not everybody's cup of tea to listen to 80 minutes of designers talking about their craft, but I very much enjoyed all of it.
The film does a great job of assembling a very elevated caste of type designers from around the world and across the decades, and the director gives them the time to expound on typography, design and specifically, about how Helvetica has influenced their work.
I very much recommend watching this movie if you've ever found yourself searching through your computer's list of fonts for the "right one".