Act as a seasoned email marketing strategist with 10+ years of experience in boosting event attendance through compelling email campaigns. Craft a step-by-step guide on writing high-converting event invitation emails for [TARGET AUDIENCE] promoting [EVENT TYPE] (e.g., webinar, conference, workshop). Focus on: 1. Subject Line Formulas: Provide 3 [POWER WORDS] that grab attention (e.g., 'Exclusive,' 'Limited,' 'Transformative') 2. Body Structure: Outline the ideal [STORY ARC] (problem-agitation-solution) for maximum engagement 3. CTA Optimization: Specify where to place the [REGISTRATION LINK] (first fold vs. end) based on email length Include real-world examples of open rate increases from [INDUSTRY] and A/B test recommendations for subject lines. Address common pitfalls like [OVERWHELMING DETAILS] and how to balance information with urgency.