About once a month, there's a new logo to fight about on the internet. The biggest one in recent memory was the highly controversial Hillary Clinton logo, which did not escape scrutiny from Vox.com either. But as a designer/filmmaker, something about these repeated discussions struck me as missing the point on what makes logos tick. It often has little to do with the subjective musings. So I called up Michael Bierut, the designer of that Hillary Clinton logo and countless others. He sat down with me and helped explain the elements of a great logo in the video above.