Your brain runs cognitive shortcuts constantly - not by accident, but by design. You will learn to catch four of the most consequential ones in the act: the invisible anchor that rigs every price negotiation before a word is spoken, the filter that turns your beliefs into a hall of mirrors, the confidence gap that makes beginners certain and experts doubtful, and the vivid story that always beats the accurate statistic. Understanding these patterns does not make you immune to them. It makes you harder to fool - including by yourself.