Every person in sales can and must get better if they want to earn more money and achieve success. Unleash the Sales Superstar Inside You is the ultimate tool to find your key strengths and develop unstoppable power to close more sales. Discover the secrets of sales superstars and how to become the best in your field. Everything you need to know to become a Sales Superstar. Kirk Heiner is a Sales Trainer with over 30 years experience in sales.