You haven’t heard of Count Cagliostro? Well, chances are if HarperCollins has anything to do with it, you will. Iain McCalman’s book comes with enthusiastic endorsements from Simon Winchester, Peter Conrad and Peter Gay. And it must be said that there is a sense in which the Count – ‘the greatest enchanter of the eighteenth century’, as McCalman salutes him – is alive and well: a Googl ... (read more)