In 2004, the New York Times dissected the Bush/Cheney and Kerry/Edwards presidential logos.
With the 2008 Presidential Race heating up, the New York Times has dissected the campaign logos of the front-running candidates. Click the image below for a sampling of the dissection. If the image does not show-up big and clear enough on your screen, consider opening up this PDF file. Or, go directly to the source at the NY Times.