Which saint is the one to call on when you've lost your keys? Which hairdresser was beatified? What might the Fourteen Holy Helpers do for you, and why are so many beers named after monasteries? On the other side of the coin, who makes it on to the list of the world's 10 worst dictators and who doesn't? Who sold the Eiffel Tower as scrap metal and which circle of hell do flatterers end up in? An entertaining and illuminating guide to the best and worst of human nature.