We usually think of snap judgments as lazy, superficial, and probably wrong. But are they really? In Blink, Malcolm Gladwell argues that snap judgments can be just as good as—or even better than—the decisions that we make when we analyze a situation carefully. Blink delves into how and why we make the gut decisions we do, when it’s unsafe to trust our guts, and what we can do to make all our snap judgments smarter, less biased, and more efficient.

In this guide, we add some structure to Gladwell’s arguments and update the research he draws on, looking at how snap judgments might work in the brain. We also give you some additional strategies for maximizing the accuracy of your snap judgments.