Andrew Pettegree is Professor of Modern History at St Andrews University, where he directs the Universal Short Title Catalogue, a database of information about all books published before 1650. A leading expert on the history of book and media transformations, Pettegree is the award-winning author of several books on the subject. He lives in Scotland.

Arthur der Weduwen is a historian and postdoctoral fellow at St. Andrews, where he serves as an associate editor of the Universal Short Title Catalogue. This is his fifth book. He lives in Scotland.