With their national bestseller The Go-Giver, Bob Burg and John David Mann took the business world by storm, showing that giving is the most fulfilling and effective path to success. That simple, profound story has inspired hundreds of thousands of readers around the world-but some have wondered how its lessons stand up to the tough challenges of everyday real-world business. Now Burg and Mann answer that question in Go-Givers Sell More, a practical guide that makes giving the cornerstone of a powerful and effective approach to selling. Most of us think of sales as convincing potential customers to do something…