Field Work, which first appeared in 1979, is a superb collection of lyrics and narrative poems from one of the literary masters of our time. As the critic Dennis Donoghue wrote inThe New York Times Book Review: "In 1938, not a moment too soon, W. B. Yeats admonished his colleagues: 'Irish poets, learn your trade.' Seamus Heaney, born the following year, has learned his trade so well that it is now a second nature wonderfully responsive to his first...