For informnation on armies

Philip J. Haythornthwaite's Napoleonic Source Book. Arms & Armour Press; New Ed edition (March 1997)
ISBN-10: 1854092871
ISBN-13: 978-1854092878

Digby Smith's An Illustrated Encyclopedia: Uniforms of the Napoleonic Wars: campaign maps; Provides an unrivalled source of visual information on the fighting men of the period. Lorenz Books (April 25, 2007)
ISBN-10: 0754815714
ISBN-13: 978-0754815716

This next one was also published with the author's name of Otto von Pivka.

Digby Smith's Armies of the Napoleonic Era. Schiffer Publishing (March 2004)
ISBN-10: 0764319892
ISBN-13: 978-0764319891

Digby Smith's The Greenhill Napoleonic Wars Data Book. Greenhill Books (June 1998)
ISBN-10: 1853672769
ISBN-13: 978-1853672767

For more information on the books and customer comments check the Amazon.com & Amazon.co.uk sites for these titles.

Good hunting

Ron