The first volume in a three part series. Contains 344 pages, including 72 pages of color line drawings and 3D drawings, 260 photographs, and 354 2D/3D b+w drawings. The volume covers the following vehicles: Panzerjager I, All vehicles referred to as Marder, based on the chassis of the Pz.Kpfw.II and Pz.Kpfw.38 (t) tanks, that is, Sd.Kfz. 131, Sd.Kfz. 132, Sd.Kfz. 139, Sd.Kfz. 138 (Ausf. H and Ausf. M), Hetzer, Hornisse (Nashorn), The prototype vehicle 10.5 cm Pz.Sfl.Iva.