Frederick the Great (1712-1786) embodied two ideas of kingship: on the one hand, the traditional one of the warrior monarch, and on the other, an enlightened monarch, patron of the arts, a social reformer, and the friend of philosophes like Voltaire. It is on this dual character of his rule that his perennially high reputation rests, says historian Adam Storring. He introduces us to both sides of Frederick's kingly character and recommends books to learn more about the brilliant military campaigner who led Prussia from 1740 until his death nearly half a century later.