This guide has been compiled by Ashley Castelino with the generous assistance of Stewart Tiley and the Balliol College Library, the Bodleian Library, Dr Cristina Neagu and the Christ Church College Library, the Jesus College Library, Lucy Matheson, Dr Sarah Cusk and the Lincoln College Library, Dr Julia Walworth and the Merton College Library, Oliver Mahony and the St Hilda's College Library, and Dr Petra Hofmann and the St John's College Library.