Communications skills for effective leadership

Some people seem to be born leaders, while others have leadership thrust upon them. History shows us that many people who come from fairly humble origins have been suddenly transformed into legends in their own time and beyond. What creates a Julius Caesar or a Napoleon? What creates in our own era, and with less conquering involved, the likes of Richard Branson, Steve Jobs and Warren Buffett? The one thing they all have in common is that they are effective communicators, and one might even say "spin doctors". They understand the importance of conveying a vision people want to participate in.