Rodney Thomson FAHA. is Emeritus Professor of Medieval History at the University of Tasmania. His publications include Books and Learning in Twelfth-Century England: The Ending of 'Alter Orbis' (2006), and co-editor with Nigel Morgan of The Cambridge History of the Book in Britain 2: The Manuscript Book c.1100–1400 (Cambridge, 2008). Professor Thomson has compiled descriptive catalogues of the manuscript collections held at Lincoln, Hereford and Worcester Cathedrals, as well as Merton and Corpus Christi Colleges, Oxford and Peterhouse, Cambridge.