Jeff Bezos, the founder of the online giant Amazon.com, was working at McDonald's at 16. His father-in-law, an imigrant from Cuba Miguel Bezos, wokred there as well, Having become a famous businesman, Jeff Bezos is easilly sharing stories about his experince in fast food business. In fact, he thinks that he has learned much during his years as McDonald's employee.

Jack Ma is one of the wealthiest people in China, and the founder of the online retailer Alibaba Group. He once worked as a school teacher of English. As he puts it, the teacher's salary was brought him an income of about $12 per month.

Michael Bloomberg, the founder of a famous information agency, and a former Mayor of New York worked as a parking attendant when he was a student. He used all money earned to pay the colledge tuition.

The founder of Virgin company Richard Branson has dreamed of being a businessman since his childhood. At 10, he attempted to grow and sell Christmas fir trees together with his friend. At 16, he started his own magazine called Student.

Jan Koum, the person who started WhatsApp messenger, had to work in a cleaning service in a food store. The family of a billionaire imigrated to the United States from Ukrain, and they needed money badly. Then Kum was a hacker, one of the woowoo group.

Warren Buffett, who is known to be one of the planet's richest people, was born in a wealthy family. Despite that, since early years he was trying to make his own money. A permanent participant of the Forbes billionaires' list was delivering newspapers, re-selling food from the local supermarket to his parents, and was later trading on the stock exchange.

A co-founder of Nike Phil Knight was working as a journalist at the beginning of his career, because it was his major at college. In mid 60's the oner of a world-known sports shoes brand started to sell Japanese footwear basically from the trunk of his own car.

The Russian billionaire Dmitry Rybolovlev, the ex-owner of Severstal, was working as a hospital attendant in his student years at the Perm Medical Institute. In fact, he gratuated with honors. A remarkable fact is that his first company Magnetics was connected with medicine. The businessman offered a service of magnet therapy, developed by his father, to large manufactureres.

A Russian businessman Oleg Tinkov had worked as an electrical fitter, and even a black marketeer before he started Tinkoff Bank.