Iain MacLean, Professor of Politics and fellow of Nuffield College, the British Academy and the Royal Society Edinburgh, has published widely on constitutional issues. MacLean is joined by Professor Will Hutton. His What's wrong with the British Constitution? co-won the WJM Mackenzie Prize for the best politics book of the year and was a member of the Independent Expert Group advising the Calman Commission on Scottish Devolution. Creative Commons Attribution-Non-Commercial-Share Alike 2.0 UK: England & Wales; http://creativecommons.org/licenses/by-nc-sa/2.0/uk/