Act as an experienced SEO content writer with 5+ years of expertise in crafting strategies for internal linking. Write a detailed guide on the role of anchor text in internal linking for a beginner audience. Explain what anchor text is, why it matters for SEO, and how it can improve [USER EXPERIENCE], [NAVIGATION], and [SEARCH ENGINE RANKINGS]. Provide actionable tips on how to choose relevant and descriptive anchor text, avoid over-optimization, and balance keyword usage with natural language. Include examples of effective vs. ineffective anchor text in the context of a [BLOG POST] and an [E-COMMERCE SITE]. Conclude with a summary of best practices and a call-to-action encouraging readers to audit their internal linking strategy.