How to Prioritize High‑Impact Work: Lessons from Five Years at Amazon

01 The Value of Things Is Their Social Value

When evaluating work, prioritize based on the benefit to society rather than personal enjoyment; the author uses a formula: Number of beneficiaries × Time per beneficiary × Value difference per unit time .

This formula can be applied to products (e.g., WeChat’s massive user base and daily usage make it highly valuable) and research (e.g., the impact of a paper depends on its field size, the time it saves, and the improvement over prior work).

02 Serving Society Ultimately Serves Oneself

Focusing on societal value also brings personal satisfaction, recognition, and career rewards such as promotions and raises.

03 Technology Ultimately Serves the Product

Technical work should be evaluated by how it improves the core product; even excellent technology may be ignored if it does not align with product goals.

Understanding product market, pain points, and frequency helps guide technical road‑maps.

04 A Soldier Who Doesn’t Want to Be a General Isn’t a Good Soldier

Personal growth requires comparing oneself to past performance and seeking higher‑value challenges, often requiring teamwork and leadership.

05 Looking Three Years Ahead

Predict the future value of a project within a three‑year horizon; consider user changes, emerging technologies, and potential disruptions.

06 The Core of Management Is Sincere Treatment of People

Effective teams need clear goals, hiring talent stronger than oneself, retaining high performers, and helping weaker members improve or transition.

Leaders should empathize with team members, provide resources, and foster a supportive environment.

07 Focus! Focus!

Avoid blind expansion; concentrate resources on the most valuable initiatives to achieve breakthrough results.

08 With Effort, Weaknesses Can Become Strengths

Personal shortcomings can be turned into opportunities by dedicating effort to improve, as demonstrated by the author’s transition from poor documentation skills to co‑authoring a widely used deep‑learning textbook.

09 Play to Strengths, Avoid Weaknesses

Allocate effort based on value; do not waste resources on low‑impact tasks even if they are enjoyable.

10 Communication Overhead Dominates in Distributed Systems

In large‑scale computing, reducing inter‑machine communication is key to performance; similarly, in large teams, communication overhead is a major bottleneck.

11 Promotion

Advancement depends on delivering high‑value projects, demonstrating significant contributions, and building influence across teams and the organization.

12 Salary Increase

Compensation follows a banded structure; moving up the band requires increasing impact and taking on higher‑value work.

13 Conclusion: Focus on the Most Valuable Things

Identify clear value metrics, predict future impact, and concentrate resources on the highest‑value tasks to achieve lasting success.