When American poets turn to the sonnet, they invest it with a glamour and intensity equal to anything they have to show in more flamboyant, new-minted shapes. Like a symphony by Copland or a nude by de Kooning, an American sonnet marries European artistic tradition to New World innovation and expansiveness. Something old and familiar--the themes and schemes and history of the 14-line lyric--becomes something new, vital, and characteristically American...