Ask HN: Best marketable skills and value proposition

Everyone has different knowledge, experience, skill set, mindset. 1. What are your skills that are best marketable? 1a. What is your story, where/how you get these skills? 2. What is your value proposition for your employer/client? 2a. How you present value proposition during hiring/sales process? 3. What is your focus/next goal in next 5 years (in terms of personal development)?