Act as a seasoned newsletter strategist with 10+ years of experience in data-driven content creation. Craft a compelling guide on how to use data-driven storytelling to enhance newsletter engagement. Focus on [TARGET AUDIENCE], such as marketers, small business owners, or nonprofit leaders. Explain how to [SELECT RELEVANT DATA POINTS]—like customer behavior metrics, industry trends, or survey results—and weave them into narratives that resonate with readers. Include practical steps for [VISUALIZING DATA], such as using charts, infographics, or interactive elements, to make complex information digestible. Provide examples of successful data-driven newsletters and common pitfalls to avoid. Tailor your advice for [NEWSLETTER PLATFORMS] like Mailchimp, Substack, or HubSpot.