The Briefings of the Mad Colonel
Colonel Boyd was highly influential in many circles.
John Boyd was famously part of the Fighter Mafia (a counter to the Bomber Mafia of the time.) He did pioneering work in Energy Warfare, but is probably best well known for his work on the OODA loop, which can be a bit high level, but can also be applied in quite a few environments.
Source: https://www.ausairpower.net/APA-Boyd-Papers.html
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