FM 17-10 Armored Force Tactics and Techniques. This 469-page Field Manual (FM) is the HOW TO book on how the U.S. Army trained to fight with tanks in 1941.
FM 17-12 Tank Gunnery. This 105-page Field Manual (FM) is the bible for tank gunnery in the U.S. Army in 1943.
FM 17-15 Combat Practice Firing Armored Force Units. This all-inclusive, 50-page Field Manual (FM) explains tactical tank gunnery problems for the U.S. Army in 1942. Illustrated.
FM 17-20 Employment of Armored Reconnaissance Platoon and Company. This 137-page Field Manual (FM) contains the requirements for training armored reconnaissance units in 1942.
BONUS: J.F.C. Fuller. This informative 84-page book produced for the US military is the first chapter in J.F.C. Fuller s groundbreaking Foundation and Science of War. Fuller is credited as one of the developers of mechanized warfare and the blitzkrieg theory prior to WWII.