Folk music is a loosely used American term that refers to the music of the 1960s. Folk guitarists are usually defined as singer-songwriters (such as Bob Dylan, Joan Baez, and Judy Collins). The term is widely used by the media and music industry to include any acoustic music. There is contemporary folk music and traditional folk music. Contemporary songs include protest songs or songs about social issues. Traditional songs include regional references and stories about a culture and its people. Folk music can feature other acoustic instruments accompanied by acoustic guitars. This chapter introduces some of the most famous folk guitarists.