You have 80,000 hours in your career. That’s a long time. Spend one or two of those hours on this guide, to help you work out how to use the rest. We believe you might be able to find a career that is both more satisfying and has a greater positive impact.

Answer: Research shows that to have a fulfilling career, you should do something you’re good at that makes the world a better place. Don’t aim for a highly paid, easy job, or expect to discover your “passion” in a flash of insight. Find out the six key ingredients of fulfilling work.

Answer: Many common ways to do good, such as becoming a doctor, have less impact than you might first think. Other, more unconventional options, have allowed certain people to achieve an extraordinary impact (including one particular Lieutenant Colonel in the Soviet military).

Answer: With the right approach, you can make a major difference to the lives of others without changing jobs, or making a major sacrifice. You can do this by giving 10% of your income to the world’s poorest people, promoting important causes, or helping others to have a greater impact.

Listen to learn about three ways to make a difference in any job.

Answer: To maximise your impact, work on areas (1) that are large in scale, (2) that others neglect, and (3) where it’s possible to make progress. Many people fail to compare the scale of different problems, work on the same problems as everyone else, and support programmes with no evidence of impact.

In this article we explain how to compare global problems.

Answer: Most people in rich countries who aim to do good work on health, poverty, and education in their home country. But health in poor countries is a bigger, more solvable problem, and only receives 4% of charitable donations. And we argue there are even bigger and more neglected issues, such as those involving existential risks and smarter-than-human AI.

Here we explain what we’ve learnt about the world’s most urgent problems.

Answer: When we think of jobs that help people, medicine, teaching, and charity work are what first come to mind. But these are not always the highest-impact options. To help the most people, think broadly about the paths where you can make the biggest contribution, including research, communications and community-building, taking high-earning jobs to donate to charity, government and policy, and organisation-building.

Here we lay out five types of high-impact career.

Answer: Especially early in your career, take options that will give you career capital — skills, connections, credentials, character, and runway that put you in a better position to make a difference. Examples include working at high-performing growing organisations, graduate studies in certain subjects such as economics, or learning concrete skills like information security or China expertise. Be careful with humanities PhDs, charity jobs, and vocational qualifications.

Here we lay out many strategies for putting yourself in a better position.