At 77 Warren Buffett, considered the largest U.S. investor, is also the world's richest man with a fortune estimated at 62,000 million. Biography Early life Warren Buffet was born in 1930 in Omaha, Nebraska. The son of a stockbroker and a member of Congress.As a boy, regardless of their family, handed out newspapers to earn some money and this probably sparked his interest in the media, where it subsequently did several successful investments, including the Washington Post, an action that has provided a lot of money and that he does not seem intent to sell. With its enterprising nature Warren tested in several part-time business but his fate was set when, after graduating from the University of Nebraska, studied business at Columbia Graduate Business School and absorbed the lessons of their own legendary Benjamin Graham, known as the father of investment in "value" or "value investing". Working with Benjamin Graham tried to get a job with the firm of Graham and was his first failure. Finally got the job and learned a lot about investing in stocks of "The Maestro". Graham finally retired and Buffett began a limited company in Omaha, using capital from family and friends.The company was a great success and said Buffett has since achieved an average annual profits by 23 percent, far more than the market average. Buy Berkshire Hathaway Buffett, after several years, decided to liquidate the company which had created the lucky investors by returning their capital and their share of the profits, and bought a share of Berkshire Hathaway, then a textile company, giving its original investors the opportunity to invest. Some did. The beginnings of Buffett's Berkshire Hathaway were not bright. The company was in an industry facing real challenges of exports and high manufacturing costs. Warren Buffett, however, had not forgotten what he had learned under Graham, and eventually bought two insurance companies in Nebraska. This was the start of Buffett's interest in the insurance and financial rise to fame and Berkshire Hathaway.The insurance game is hard but under Buffett's company has become a major insurer and an investor of success. Buffett Buffett and Charlie Munger befriended Charles T Munger, lawyer and investor Charlie Munger, Berkshire Hathaway joined as vice president, alter ego, and friend. Warren Buffett is always the first to recognize the contribution that has made Charlie Munger of Berkshire Hathaway. Under Buffett and Munger, Berkshire Hathaway has become a giant in the investment that has quite a number of successful companies including: Geico Nebraska Furniture Mart Corporation See's Candy Shops Buffet has become a legend and was appointed the level of his mentor, Benjamin Graham, first in a stellar roster of investors that included Peter Lynch, John Neff, and Philip Fisher.