Richard Branson is not a perfect speaker. He says erm and um a lot, and he sounds nervous, but he always has a clear message. He is NOT a dynamic speaker, and yet he connects with his audience.
The real art of presenting is about giving a message. And it’s making your message as clear as a bell for your audience. The clarity of your message is necessary because a presentation is more than giving information. Your purpose is to influence people, so they say yes to your ideas, yes to signing a contract and yes to new working conditions.