These four videos are designed for patients, the public, healthcare professionals, students and more, who want to learn about systematic reviews and the main steps involved in producing a review. These videos can be used in teaching and for public and patient involvement – they are free to use, just credit us and let us know that you are using them*. These modules were co-produced by Cochrane Crowd, Cochrane Ireland, and patient and public involvement partner Theresa Tierney