DAVID PAROISSIEN was Emeritus Professor of English at the University of Massachusetts, Amherst, and Professorial Research Fellow at the University of Buckingham. A distinguished Dickens scholar, he was Editor of Dickens Quarterly and Co-Editor the Dickens Companions series.

LEON LITVACK is Professor of Victorian Studies at Queen's University Belfast and a leading authority on Dickens's manuscripts, handwriting, and photographic portraits. He is Principal Editor of The Charles Dickens Letters Project and Joint General Editor of The Oxford Edition of Charles Dickens.