If you’re a Cochrane contributor and have ever attempted to explain Cochrane’s work to someone, chances are you’ve tried to answer this question. And if you’re reading this because you’re new to Cochrane and the work we do, you may be wondering about this too.

Thanks to a team of creative colleagues from Cochrane Consumers and Communication, we’re pleased to share a video resource which answers this question clearly and simply for people who may not be familiar with the concept of systematic reviews: what they are, how researchers prepare them, and why they’re an important part of making informed decisions about health - for everyone. You can find this video on Cochrane Iran’s Aparat channel, and we hope you’ll share and spread the word about the importance of evidence!