Charlie Munger is an American billionaire investor, businessman, and former real estate attorney. He is vice chairman of Berkshire Hathaway, the conglomerate controlled by Warren Buffett; Buffett has described Munger as his closest partner and right-hand man. Munger served as chairman of Wesco Financial Corporation from 1984 through 2011. He is also chairman of the Daily Journal Corporation, based in Los Angeles, California, and a director of Costco Wholesale Corporation.