In a choice described as 'unusual' by the Daily Mail (we disagree, of course), Prince Philip was photographed taking Dr Christopher Kelly's 2009 book The End of Empire: Attila the Hun and the Fall of Rome away for holiday reading. This earned Dr Kelly's book a special feature on the Mail's website. Maybe the Queen will borrow it afterwards...
Dr Kelly's book, which tells us a more rounded story of Attila than the popular legend, can be bought on Amazon, if you feel like spending Christmas like royalty.