This terrific book (Part II) should be bought with Part I to give the complete survey of the French Napoleonic Army.
The most famous corps was the Imperial Guard of the Napoleonic Army. This book introduces the various units within the Imperial Guard and the text is richly illustrated with great uniforms. Using this as a primer, try reading Anne Brown's translation of Henri Lachouque's "The Anatomy of Glory: Napoleon and his Guard".
A must for all Napoleonophiles! Part I and Part II fetch rather high prices in 2nd hand bookstores, a testament to their enduring appeal.