Nancy Duarte emphasizes that storytelling has been one of the most compelling tools of persuasion for centuries. But founders embracing the storytelling form often make a crucial mistake: They cast themselves as the protagonist in the hero's journey, rather than the specific people they intend to persuade. Getting storytelling right means the founder is the mentor of the story (ie Yoda), rather than the hero (ie Luke.) This is true whether the audience is the customer, future employees, investors, journalists, or the audience at your next TED talk.