Warren Buffett. A name synonymous with investment in America.Each year, Warren Buffett writes a letter to the shareholders of Berkshire Hathaway Inc., his investment holding company headquartered in Omaha, Nebraska. Up until 2023, Charlie Munger—who Buffett referred to as the "architect" of Berkshire—had also participated in the writing of these letters. Munger died at the ripe age of 99, on November 28, 2023, so now, the mantle has passed to Buffett alone.