Marketing Fundamentals Distilled

You need to grasp marketing well enough to get something done, but you didn't come up through it. This hands you the twenty percent of marketing thinking that explains eighty percent of why people actually buy: five concepts, each with a concrete example and one practical implication. Decision-making, not tactics.

I need to understand marketing well enough to {MARKETING_GOAL}. I am not a marketer by background.

Give me the 20 percent of marketing thinking that covers 80 percent of why people actually buy things. Not tactics. Concepts that help me understand the real decision-making behind purchases. Five ideas only, each with a concrete example and one practical implication for someone trying to {MARKETING_GOAL}. Tell me which famous marketing frameworks are mostly reassuring nonsense dressed up as science.