John Donne is the father of Metaphysical Poet. He is called Poet of Love and Religious Poet. His famous poems: - For Whom The Bell Tolls, - The Good Morrow, - The Sun Rising, - The Canonization, - Twicknam Garden, - The Frea, - The Ecstasy, - The Funeral etc.
On the other hand, ‘For Whom the Bell Tolls’ is a novel by Ernest Hemingway.
[Source: An ABC of English Literature, Dr. M Mofizar Rahman.]