Excerpt: "For the authenticity of the events the reader has this guarantee. The author was either an eye-witness of what he relates, or acquired his knowledge from those who were. Persons of no mean authority. Commanders-in-chief, generals, and other officers on both sides; private official correspondence of the English envoys; military journals and reports of the French leaders; the correspondence of the intrusive King Joseph, and his ministers, and the private military notes and instructions of the Emperor Napoleon, have all contributed to establish the truth of the facts and motives of action."