Whether you're required to do it frequently or occasionally, there perhaps is nothing more nerve-wracking than getting up in front of an audience in the course of your job. If you dread the idea of presenting to others, you're not alone. Public speaking is actually Americans' single greatest fear -- more so than heights, needles, and other common phobia triggers.While not everyone is particularly nervous about addressing an audience, let's face it: Many folks out there just aren't that great at it.