Tweedy, Browne Company LLC is an American investment advisory and fund management firm founded in 1920. As of December 2012, it managed approximately 13 billion dollars in separate accounts and four mutual funds.  All of the funds are managed in accordance to the principles of Value Investing as popularized by Benjamin Graham. The firm's managing directors included well-known value investor Christopher H. Browne, author of The Little Book of Value Investing. Browne died on December 13, 2009.  The managers of Tweedy, Browne also published a number of freely available papers about investment strategies.