MacDonald P. Jackson is Emeritus Professor of English at the University of Auckland, New Zealand, a Fellow of the New Zealand Academy of the Humanities, and a Fellow of the Royal Society of New Zealand. He has published widely on Shakespeare and his contemporaries, and has also been a critic, historian, anthologist, broadcaster, and editor of New Zealand literature. His twelve books, as author, editor, or co-editor, include Oxford or Cambridge editions of the plays of Shakespeare, Thomas Middleton, John Marston, and John Webster, and Defining Shakespeare: 'Pericles' as Test Case. Words That Count: Early Modern Authorship Studies in Honor of MacDonald P. Jackson was published by the University of Delaware Press in 2004.