To be a successful data storyteller, you need to possess a combination of skills and competencies that span across data, design, and communication domains. These include data literacy, which is the ability to understand, interpret, and analyze data, as well as identify the most relevant and impactful data for your story. Additionally, data visualization is essential, as it allows you to choose and create effective and appropriate data visuals that support your story and enhance your audience's understanding. Storytelling is also important, as it enables you to structure and narrate your data story in a clear, concise, and engaging way, and tailor it to your audience's needs, interests, and goals. Finally, communication is key, as it allows you to deliver your data story with confidence, clarity, and empathy, and use verbal and non-verbal cues to connect with your audience and elicit feedback.