Ten years ago, Histoire & Collections published a book entitled Tanks of World War Two, which comprised hundreds of colour profiles ans three-quarters views by Jean Restayn. This book obtained a great success but is now sold out for long. The time has come of publishing a completely renewed version, with many additions. In this volume, campaign by campaign, the proper tanks (battle tanks and light tanks as well) of every nation involved in the various campaigns of WWII, from Poland to Berlin and from Lybia to Normandie, from the earliest Panzer I to the latest British Cruiser tank, each type is represented in full colour. Two additional volumes are scheduled in this Encyclopedia: Volume Two will be devoted to tank destroyers, self-propelled artillery and special purpose AFVs, while Volume Three will include the various types of wheeled armoured cars and miscellaneous armoured vehicles.