In watching the movie "Helvetica", I was surprised to see how much effort and concentration is put into creating new letters. Before, I never looked at letters as complex instruments, but there is so much more involved than I had known. While the movie was rather... dull, I enjoyed learning the intricacies of creating letters. So much history plays a role in each font and I find that extremely interesting.
And I really enjoyed writing a piece on Helvetica in Arial font. :)