Discover the secrets of becoming very successful in sales using the Theory of Sellativity. Two Times #1 International Best Selling Author, Jeff Lewis loves to teach his professional sales process Jeff prides himself personally on having helped hundreds of sales professionals personally improve their methods and success. Theory of Sellativity is based the author's over 30 years of sales experience. Buy the book today and take a journey with Jeff from his early career to working for some of the biggest companies in the world. In the book you will learn the key steps to effective sales...