Introduction: 9 Lessons to Change The World Lesson 1: This is a Cause and Effect World. Lesson 2: Know, Share and Act on The Truth Lesson 3: Coalitions are Essential Lesson 4: Avoid Certainty Lesson 5: Build in Evaluation and Continuous Improvement Lesson 6: Respect the Culture. Culture Matters. Lesson 7: Seek Strong Leadership & Management Lesson 8: Mobilize political will Lesson 9: Move towards global health equity