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The second in the series of videos discussing how various nations spent the time in between the two wars analyzing what did or did not work for their tank doctrines, how they were developed, and what they came up with. This video (obviously) looks at the British, where budgets and votes were far more important than tank capability.
Mechanised Force, David Fletcher
The Challenge of Change, Harold Winton
Military Innovation in the Interwar Period: Willaimson Murray
The Business of Tanks: G. Mcleod Ross
Men, Ideas and Tanks, J.P. Harris
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The Chieftain (Real name Nicholas Moran) is Wargaming America's resident tanker and amateur historian.