傑弗裏•吉特默是享譽全球的銷售及客服專傢，被譽為全球銷售教練。他每年為IBM、可口可樂、希爾頓酒店等企業組織150多個培訓項目及銷售會議。他寫作的所有圖書都曾榮登Amazon.com暢銷榜冠軍，全球銷量已超過100萬冊。

There are universal laws of selling that determine whether you succeed, or don't succeed - whether you earn enough to enjoy the lifestyle you want or struggle to make ends meet. When you align the wind with your sails, you move effortlessly across the water. When your sails are out of alignment, you flounder and go nowhere. If you align your thinking and actions with these powerful laws of selling, you will be more effective and efficient. You will encounter less friction, require less energy, and get bigger results faster. Here's a sampling of Jeffrey's 21.5 Laws of Selling: * Deliver Value First * Ask Before Telling * Communicate in Terms of Them * Become Your Own Brand * Earn Referrals and Testimonials without Asking * Create Loyal Customers These 21.5 Laws are the rock foundation of selling. They may be invisible but they are undeniable - and unbreakable. If you're just getting started in selling, you will find the Laws invaluable. Whether or not you learn them and follow them will make or break your career. If you've been in sales for a while, you will find yourself saying, "I haven't been doing that." "I knew that! How did forget?" When we break the Laws we pay the price. Our sales suffer. Our bank account takes a hit. It's an effort to get out of bed and make a sales call, to do our best work - work that is aligned with the Laws. Use Jeffrey's Laws of Selling to recharge your enthusiasm and redirect your actions back to what really works.