Success isn’t about being right all the time—it’s about increasing the odds of making the right choices more often. During my time at Amazon, I learned that the best decision-makers use mental models, curated data, reference points, small prototypes, expert advice, and experienced partners to improve their judgment. Instead of relying on gut instinct or working harder on the wrong things, they build Intellectual Capital to make better decisions, faster. Want to "Guess Right Often" in your business and life? Read on to discover how.