Charles Thomas Munger is an American business magnate, lawyer, investor, and philanthropist. He is Vice-Chairman of Berkshire Hathaway Corporation, the diversified investment corporation chaired by Warren Buffett; in this capacity, Buffett describes Charlie Munger as "my partner." Munger served as chairman of Wesco Financial Corporation from 1984 through 2011 (Wesco was approximately 80%-owned by Berkshire-Hathaway during that time). He is also the chairman of the Daily Journal Corporation, based in Los Angeles, California, and a director of Costco Wholesale Corporation.