"Writer, singer, and political activist, Woody Guthrie is perhaps the single most important figure to have influenced the tradition of American folk music in our time. During his life, Guthrie wrote more than twelve hundred songs, including what has become the unofficial national anthem, "This Land Is Your Land," the rollicking "So Long, It's Been Good to Know You," and the moving "Pastures of Plenty."". "Wherever he was, Woody Guthrie surrounded...