Peers are people with lived experience of mental illness. Peer support is an established intervention in which peers offer support to others with mental illness. A large proportion of people living with severe mental illness receive no care. The care gap is largest in low- and middle-income countries, with detrimental effects on individuals and societies. The global shortage of human resources for mental health is an important driver of the care gap. Peers are an under-used resource in global mental health. By Bernd Puschner, Julie Repper, Candelaria Mahlke, Rebecca Nixdorf, David Basangwa, Juliet Nakku, Grace Ryan, Dave Baillie, Donat Shamba, Mary Ramesh, Galia Moran, Max Lachmann, Jasmine Kalha, Soumitra Pathare, Annabel Müller-Stierlin, Mike Slade. Read the article here