Book excerpt: The two books in this authoritative box set offer a comprehensive guide to tracked and wheeled vehicles. The World Encyclopedia of Tanks features tanks and their derivatives, such as ARVs, tank destroyers, command versions, bridgelayers, mine-clearers and other Funnies. The World Encyclopedia of Armoured Fighting Vehicles features armoured cars, armoured personnel carriers and self-propelled artillery, covering a wide range of wheeled, tracked and half-tracked vehicles.With over 1200 photographs from museums and libraries, these books provide enthusiasts, historians and modelmakers with a superb guide to this fascinating subject.