 "The Sword of Truth" series sold 25 million copies worldwide and was translated into more than 20 languages.Additionally, it was adapted into a television series called "Legend of the Seeker", which premiered on November 1, 2008, and ran for two seasons, ending in May 2010.Goodkind is a proponent of Ayn Rand's philosophical approach of Objectivism, and makes references to Rand's ideas and novels in his works.