When Carol Loomis first mentioned a little-known Omaha hedge fund manager in a 1966 Fortune article, she didn’t dream that Warren Buffett would one day be considered the world’s greatest investor—nor that she and Buffett would quickly become close personal friends. As Buf­fett’s fortune and reputation grew over time, Loomis used her unique insight into Buffett’s thinking to chronicle his work for Fortune, writ­ing and proposing scores of stories that tracked his many accomplishments—and also his occa­sional mistakes