For a lot of people, sales isn’t considered the most glamorous or rewarding of jobs. The business of sales may be a tough and high pressure environment. However, it has acted as the training ground for many of the world’s most famous and successful people. The lessons they learned during their time in sales set them up for a successful future in business. Many of those people have gone on to become millionaires or even billionaires. Here at Pan Atlantic, we take a look at five billionaires who started their successful careers as salespeople.