In life, parents reward children who make progress in school, and bosses use bonuses to motivate their employees to work hard. The method of “do A to get B” is effective in the short term, but in the long term, as the rewards increase, people lose the passion for accomplishing anything. Why would there be such a consequence? What are the harms of using rewards in the long term? Is there any way to replace rewards? Punished by Rewards will give us the answer.