Anatole Cerfberr and Jules François Christophe were French authors and historians who co-wrote several books on military history and biographies of famous military figures. They were prolific writers and their works were highly regarded in their time, especially in France. Their most famous work is 'Histoire de la Guerre de 1870-1871', a comprehensive account of the Franco-Prussian War. This book is considered to be one of the most authoritative works on the subject and has been widely translated. Cerfberr and Christophe also wrote biographies of famous military leaders such as Napoleon Bonaparte, Marshal Ney, and Marshal Soult. Their writing style was clear and concise, and their research was meticulous. They drew from primary sources and firsthand accounts to provide a detailed and accurate portrayal of their subjects.