James W. P. Campbell is a Fellow in Architecture and the History of Art, Queens' College, Cambridge. His books include Building St Paul's and (with Will Pryce) The Library, both published by Thames & Hudson. Will Pryce, a trained architect and award-winning photographer, is author ofWood - A World History and co-author of Brick, World Architecture - The Masterworks, Big Shed and The Library, all published by Thames & Hudson.