There are many books about Napoleon, and some of them attempt to analyse his particular brand of military genius. Almost all these books owe a tremendous debt to Colonel Count Yorck von Wartenburg. His book was published at the end of the nineteenth Century and is still as important today; indeed, Dr David Chandler acknowledges that he used the book as one of the primary works when researching his momentous history of Napoleon. Volume II covers Spain, Ratisbon, Wagram and the ill-fated invasion of Russia. After Moscow and the Beresina crossing came the armistice, and then Dresden and Leipzig. The book ends with the exile of Napoleon for the last time after his defeat at Waterloo. The writing is always clear and uncomplicated, suiting a description of twenty years in Europe which threw the political map into confusion, and had as legacy the mistrust between France and the remainder of the continent, and the growth of Prussian military might and British complacency in military matters.