This article deals with font usage in OS X Panther 10.3.x through Lion 10.8.x. It's main purpose is to show you where fonts are located on your system and which can be removed. The idea being to keep your fonts as lean as possible and to avoid font conflicts. These issues would benefit prepress operators and designers the most, but can clear up font issues for most users. As an example, if you are having problems getting the correct version of Helvetica, Courier or other fonts to show up in your applications, you are likely experiencing font conflicts.