Frederick the Great, King of Prussia, dominated the 18th century in the same way that Napoleon dominated the start of the 19th - a force of nature, a caustic, ruthless, brilliant military commander, a monarch of exceptional energy and talent and a knowledgeable patron of artists, architects and writers, most famously Voltaire. From early in his reign he was already a legendary figure - fascinating even to those who hated him. Tim Blanning's brilliant biography recreates a remarkable era, a world which would be swept away shortly after Frederick's death by the French Revolution. Equally at home on the battlefield or in the music room at Frederick's extraordinary miniature palace of Sanssouci, Blanning draws on a lifetime's obsession with the 18th century to create a work that is in many ways the summation of all that he has learned in his own rich and various career. Frederick's spectre has hung over Germany ever since: an inspiration, a threat, an impossible ideal - Blanning at last allows us to understand him in his own time.