This book is the final documentation on the Panzerkampfwagen IV series, the most often-built German tank of World War II. It presents the exact chronology of the vehicle's development from 1935 to 1945, plus many hitherto unknown and pioneering test vehicles. The authors portray, for example, the origin of the "Large Tractor", the so-called Neubau (New-Built) Vehicle and the attempts in 1944 to install the 7.5 cm Kampfwagenkanone 42 L/70 of the "Panther" onto the Panzer IV. The authors have dedicated an entire chapter to the armament, likewise the action of the vehicle in all theaters of war from Russia to Africa. ILLUSTRATIONS 400 b/w images