Cover of the Tigerfibel tank manual published during WWII in Germany
The Tigerfibel and Pantherfibel were crew instruction manuals for the German tanks of World War II, the Panzer VI Tiger heavy tank and the Panzer V Panther medium tank.
Like other manuals designated as Fibel (basic primer), they were apparently intended to summarise what the crew needed to know for day-to-day use of the tank, and to capture their interest. It is well illustrated in comic-style and much of the text is written as poetry in a humorous manner. The Fibel such is remarkably different from the typical tedious style of a German tank manual of that period.
The manuals were approved by Heinz Guderian, the Inspector-General of Panzer troops. In the case of the Panther manual, he issued his approval in the manual's rhyming style, ending with the words, Die Pantherfibel ist genehmigt; wer sie nicht kennt, der wird erledigt (roughly "The Panther fible is approv'd; who knows it not will be remov'd." )