Samuel Guttenplan is Emeritus Professor of Philosophy at Birkbeck, University of London, retiring after nearly 35 years in Birkbeck's philosophy department. Professor Guttenplan was the founding Executive Editor of the interdisciplinary journal Mind & Languagein 1986 and he served in that capacity for five and then sixteen years from 2000, continuing now as an Editor. His research interests include the philosophies of mind, language, philosophical logic, and ethics.

Jennifer Hornsby is Professor of Philosophy at Birkbeck, University of London. She is Emeritus Fellow of Corpus Christi College, Oxford, and a Fellow of the Norwegian Academy of Science and Letters, of the British Academy, and of the American Academy of Arts and Sciences.

Christopher Janaway is Professor of Philosophy at the University of Southampton. He is general editor of the Cambridge Edition of the Works of Schopenhauer, and has published widely in the history of philosophy, particularly on Schopenhauer and Nietzsche, and in aesthetics.

John Schwenkler is Professor in the Department of Philosophy at Florida State University. He is the author of Anscombe's 'Intention': A Guide. Professor Schwenkler's research is in the philosophy of mind and action, ethics, epistemology, and cognitive science.