The Art of Eloquence: Byron, Dickens, Tennyson, Joyce (OUP 2007; pbk 2010). Winner of the Philip Leverhulme Prize (2008).
Comedy: A Very Short Introduction (OUP, 2012)
Ed., The Oxford Handbook of Victorian Poetry, (OUP, 2013).
Lessons in Byron (2013).
Ed., with James Williams, Edward Lear and the Play of Poetry (OUP, forthcoming).
Ed., Northrop Frye, Fearful Symmetry: A Study of William Blake (University of Toronto Press, 2004).
The Genealogy of the Romantic Symbol (OUP, 2007)
Ed., The Norton Critical Edition of Wordsworth's Poetry and Prose (Norton, 2013)
Samuel Johnson and the Art of Sinking 1709-1791 (2005).
Ed, with Lynda Mugglestone, Samuel Johnson: The Arc of the Pendulum (2012).
General Ed., The Cambridge Edition of the Novels of Thomas Love Peacock, 7 vols. (Cambridge University Press, 2016 - ), and co-ed., with Matthew Bevis, Crotchet Castle (forthcoming).
Ed., with Kathryn Sutherland, Jane Austen’s Teenage Writings (OUP, forthcoming).
British Romanticism and the Critique of Political Reason (JHUP, 2016)
Coleridge, Wordsworth, and the Language of Allusion, (OUP 1986; reissued,
Paradise Lost and the Romantic Reader (OUP, 1993).
Reading, Writing, and Romanticism: The Anxiety of Reception (OUP, 2000). Winner of the British Academy Rose Mary Crawshay prize.
Ed., The Cambridge Companion to Coleridge (CUP, 2002).
Ginnel [poems] (Carcanet, 2005).
Ed., with Guy Cuthbertson, Branchlines: Edward Thomas and Contemporary Poetry(Enitharmon, 2007).
Ed., with Guy Cuthbertson, The Prose Works of Edward Thomas, volume 2::England and Wales (OUP, 2011).
'All in each Other': William and Dorothy Wordsworth (OUP, 2013).
Earth’s Almanac [poems] (Enitharmon, 2015).
Coleridge and the Uses of Division (OUP, 1999).
Coleridge: Interviews and Recollections (Palgrave Macmillan, 2000).
Ed., with Nicola Trott, 1800: The New Lyrical Ballads (Palgrave Macmillan, 2000).
Ed., Coleridge’s Notebooks: A Selection (OUP, 2002; revised paperback edition, 2003).
Ed. Coleridge on Writers and Writing (Continuum, 2007).
Alfred Tennyson (Northcote House, 2005).
Ed., with Robert Douglas-Fairhurst, Tennyson among the Poets (OUP, 2009).
The Connell Guide to T.S. Eliot’s The Waste Land (Connell Guides, 2014).
General Ed., The 21st Century Oxford Authors (OUP), and volume editor, Matthew Arnold (forthcoming.)
Ossian, The Sublime Savage (Edinburgh, 1988).
The Last of the Race: The Growth of a Myth from Milton to Darwin (OUP, 1994).
Starting Lines in Scottish, Irish, and English Poetry, From Burns to Heaney (OUP, 2000).
Jane Austen’s Emma: A Casebook (OUP, 2007).
Jane Austen (Hesperus, 2008).
Local Attachments (OUP, 2010).
Ed., with David Sergeant, Burns and Other Poets (Edinburgh, 2012).
Reading Romantic Poetry (Blackwell Wiley, 2012).
Ed., William Wordsworth and S.T. Coleridge, Lyrical Ballads 1798, 1802 (OUP, 2015).
Ed., Walter Scott, Redgauntlet (OUP, 1985).
Ed., Adam Smith, The Wealth of Nations (OUP, 1993).
Ed., Jane Austen, Mansfield Park (Penguin, 1996).
Electronic Text: Investigations in Method and Theory (OUP, 1997). Text Editing, Print and the Visual Word (with Marilyn Deegan), 2008;
Ed., Walter Scott, The Bride of Lammermoor (OUP, 2000).
Ed., James Austen-Leigh, A Memoir of Jane Austen and Other Life Writings (OUP, 2002).
Jane Austen’s Textual Lives: From Aeschylus to Bollywood (OUP, 2005).
With Marilyn Deegan, Text Editing, Print, and the Digital World (Ashgate, 2009).