Author Background:Lawrence Cunningham is a leading authority on corporate governance culture and on Berkshire Hathaway and Warren Buffett.  He has written several books on value investing and is the authorized editor of The Essays of Warren Buffett: Lessons for Corporate America.  A popular professor of business law at George Washington University, his latest book is Berkshire Beyond Buffett: The Enduring Value of Values, in which executives from dozens of Berkshire’s subsidiaries cooperated.