You might specifically mean Warfighting, MCDP 1. That's the first book we read as new Lts. and has stuck with me over a decade later and served me well in tech.
But I agree with parent's point -- MDCP #1 Warfighting is pretty good. If you're a military nerd all 6 are great, but if you're just going read one of them then definitely stick to Warfighting.
