1. Being effective is something that managers can and must do.

2. Not only senior executives are managers, all knowledge workers should work and think like managers.

3. The person who is responsible for the organization and can affect the organization's operating results is the manager.

4. Don’t think that being effective is unattainable. Being effective can be learned.

5. Everyone regards effectiveness as the highest work standard. A group of ordinary people can do extraordinary things.

6. How to be effective: time management, focusing on contribution, giving full play to strengths, prioritizing important things, making effective decisions.

7. People who achieve something start from the most important things. Start. And, do one thing at a time.

8. Efficiency is "doing things in the right way", while effectiveness is "doing the right things". For businesses, effectiveness, not efficiency, is indispensable.

9. The five core tasks of managers: setting goals; assigning tasks; motivating communication; performance evaluation; and cultivating talents.