Here are some reviews of books about the period (campaigns, battles, politics and wargaming) that you may wish to read.
Wargaming
Grand Battery: A guide & rules for Napoleonic wargames, by Jon Sutherland & Diane Canwell
Wargaming on a Budget: Gaming Constrained by Money or Space, by Iain Dickie
Napoleon
Napoleon As A General, by Jonathon P. Riley
Napoleonic Armies: Friends and Foes
The Russian Officer Corps in the Revolutionary and Napoleonic Wars, 1792-1815, by Alexander Mikaberdize
Soldier of the Empire: The Note-Books of Captain Coignet, edited by Bob Carruthers
Napoleonic Army Handbook: The French Army and Her Allies
Napoleonic Wars
Napoleon on Campaign: Classic Images of Napoleon at War by Harriet Carruthers
1800 Marengo Campaign
Napoleon's Chicken Marengo: Creating the Myth of the Emperor's Favourite Dish, by Andrew Uffindell
1807 Polish Campaign
Napoleon's Polish Gamble: Eylau & Friedland 1807, by Christopher Summerville
Peninsular War
Charging Against Wellington: The French Cavalry in the Peninsular War 1807–1814, by Robert Burnham
Albuera 1811: The bloodiest battle of the Peninsular War, by Guy Dempsey
The Peninsular War - Wellington's Battlefields Revisited by Ian Fletcher
The Peninsular War - Wellington's Battlefields Revisited by Ian Fletcher
The Peninsular Collection: Salamanca (DVD), Andrew Duff, Julia Page, Tom Dormer and Tim Saunders
The Peninsular Collection: 95th Rifles: 1800 to Corunna by Andrew Duff and Tim Saunders
Wellington's Rifles: The Origins, Development and Battles of the Rifle Regiments in the Peninsular War and at Waterloo by Raymond P. Cusick
1812 Russian CampaignThe Peninsular Collection: 95th Rifles: 1800 to Corunna by Andrew Duff and Tim Saunders
Wellington's Rifles: The Origins, Development and Battles of the Rifle Regiments in the Peninsular War and at Waterloo by Raymond P. Cusick
Napoleon’s Army in Russia: The Illustrated Memoirs of Albrecht Adam, translated by Jonathan North
Napoleon in Russia, by Alan Palmer
Napoleon's Invasion of Russia, by Theodore Ayrault Dodge
The Battle of Borodino, by Alexander Mikaberidze
Borodino-The Moskva: The Battle for the Redoubts by François-Guy Hourtoulle and André Jouineau
1812: Russia's Patriotic War, by Laurence Spring
The Battle of the Berezina: Napoleon's Great Escape, by Alexander Mikaberidze
Crossing the Berezina, A Victory During The Retreat, by Francois-Guy Hourtoulle, Denis Gandilhon and André Jouineau
Borodino, by Digby Smith
Russian Eyewitness Accounts of the Campaign of 1812, by Alexander Mikaberidze
Into Battle with Napoleon 1812: The Journal of Jakob Walter, Edited and annotated by Bob Carruthers
1812 Napoleon's Invasion of Russia (The March On Moscow, Napoleon in Moscow, The Great Retreat) by Paul Britten Austin
Osprey Battlelines Borodino 1812, Osprey app for iPad/iPhone
With Napoleon's Guard In Russia: The Memoirs of Major Vionnet 1812, translated by Jonathan North
1813 Campaign in Germany
Napoleon: The Last Campaigns 1813–15, by James Lawford
Leipzig: La bataille des Nations (16–19 octobre 1813), by Alain Pigeard
1814 Campaign in France
Napoleon: The Last Campaigns 1813–15, by James Lawford
Napoleon 1814: The Defence of France by Andrew Uffindell
Waterloo Campaign
Cavalry Charge La Haie Sainte & Plancenoit: The French and Prussian Attacks (DVD), Graeme Cooper, Tom Dormer, Andrew Duff, Mike Peters, Tim Saunders and Frank Toogood
Napoleon: The Last Campaigns 1813–15, by James Lawford
Waterloo Battlefield Guide, by David Buttery