The following may be of help in this area:
-The End of Empire: Napoleon's 1814 Campaign by George Nafziger.
-Napoleon: Against Great Odds by Ralph Ashby.
-Memoirs of the Invasion of France by Baron Fain.
-Napoleon and the Campaign of France, 1814 by Henry Houssaye.
James Lawford's Napoleon: The Last Campaigns: 1813-1815 is seconded.
1814 is also covered very well in the Esposito/Elting Atlas.
These will also be helpful:
-Napoleon et des Allies sur le Rhin by Lefebvre de Behaine.
-No Peace with Napoleon by Armand Caulaincourt.
does his research, selects his colors, and goes forth!
