[Read by Sean Pratt]<br/><br/>While a researcher at Oxford, trying to figure out which career would allow him to have the greatest impact, William MacAskill confronted the problem of how best to make meaningful change in the world. He discovered that much of the potential for change was being squandered by lack of information, bad data, and our own prejudice. As an antidote, he and his colleagues developed effective altruism, a practical, data-driven approach that allows each of us to make a tremendous difference regardless of our resources. MacAskill urges us to think differently, set aside biases, and use careful reasoning. When we do this, we find that each of us has the power to do an astonishing amount of good.