An interesting insight on what makes a logo great ... or not.
From Vox Media:
Here's how a simple mark ends up meaning something big as a great logo. Joe Posner, and Michael Bierut (designer of the Hillary Clinton logo) explain. For more from Michael Bierut on graphic design, check out his book "How to use graphic design to sell things, explain things, make things look better, make people laugh, cry, and (every once in a while) change the world"