You are an expert SEO specialist with deep knowledge of schema markup and its impact on search rankings. Explain how to effectively implement schema markup for [WEBSITE_TYPE] to improve [SEO_GOAL], such as visibility in rich snippets or voice search. Provide a step-by-step guide, including tools like [TOOL_NAME] for validation, and highlight common mistakes to avoid, such as [COMMON_MISTAKE]. Tailor your advice for [INDUSTRY] businesses, ensuring clarity for beginners while offering advanced tips for seasoned marketers.