Gramm discusses looking for one of Warren Buffett's early and unpublished activist letters described in other works such as The Snowball. He wrote to Berkshire Hathaway, asking about it and was surprised to receive a package from Buffett a few weeks later. It contained the unpublished letter, along with permission to use it in his work. Something similar occurred with Ross Perot, and his unpublished letters to General Motors when he was a board member. It soon became clear that a book on activist investing was in the making.