I just finished another great book, "The Secrets of Great Rainmakers: The Keys to Success and Wealth" by Jeffrey J. Fox. His book is filled with ideas to grow your sales. I know I'm excited to put some of his strategies to work because ultimately, it's all about the service you can provide. The vocabulary words he offers in chapter 24 are important for direct sellers to know and understand. Do you know the difference between "cost", "price", and "investment"? If you are recruiting you'll appreciate his insight about silence in chapter 29. It's a quick easy read, not a bunch of fluff, but loaded with info and insight. I read his book "How to Become a Rainmaker" long ago and recommend you start with that and then read "Secrets of Great Rainmakers."
Every time you learn something new to put into practice in your business, the better you become at servicing others. When you help others, ultimately, you are able to help yourself too.