Many people fear public speaking more than death. Most wish they could do it better, or at least avoid the sweating, stuttering jitters that plague them before any presentation or speech.Vikas Jhingran has been there. He was so poor at speaking in public that his supervisor wouldn't let him make presentations to clients--even when he had done all the work.Surprisingly, few professional speakers and presenters understand speeches or presentations at a fundamental level. Thei...