After ten years, Panzer Tracts releases its first completely new title!
Panzer Tracts No.22-6: schwerer Zugkraftwagen 12t (Sd.Kfz.8) by Hilary Doyle and Thomas Jentz, is the definitive reference for all types and variants of the German Sd.Kfz.8 halftrack.
This is partial text from the full article (usually with photos) at https://armorama.com/news/panzer-tracts-sd-kfz-8-all-new-book