Zachary Leader has published widely on nineteenth- and twentieth-century literature. Among his books are Revision and Romantic Authorship (1996), Romantic Period Writings 1798-1832: An Anthology (co-edited with Ian Haywood) (1999), and (as editor) The Letters of Kingsley Amis (2000). Michael O'Neill has published widely on Romantic and twentieth-century poetry. Among his books are The Human Mind's Imaginings: Conflict and Achievement in Shelley's Poetry (1989), Percy Bysshe Shelley: A Literary Life (1989). and Romanticism and the Self-Conscious Poem (1997).