This guide is for any member of school staff who is concerned about a child or young person’s mental health and wellbeing. We have based its contents on research undertaken in the UK, but we hope it will also be of use to an international readership. It was originally co-produced for East Sussex schools by a partnership between East Sussex County Council (ESCC), Boingboing and the University of Brighton’s Centre of Resilience for Social Justice in the UK. It had input from teachers, mental health practitioners and young people who are members of the East Sussex Child and Adolescent Mental Health Service (CAMHS) Download group and members of the ESCC Youth Cabinet. Boingboing staff and volunteers have a wide range of identities, including academics, mental health and school practitioners, parents of and children with complex needs, and others with lived experience. Our team also included members with lived experience of mental health issues while of school age. The East Sussex Children and Young People’s Mental Health and Emotional Wellbeing Transformation Board funded the original Guide for East Sussex schools. This version of the guide has been adapted from this original work, with involvement and examples from those involved with the world's first Resilience Revolution happening in Blackpool. The Resilience Revolution, funded by the Big Lottery Community Fund, is a whole town approach to addressing the mental health needs of young people and they are embedding Boingboing’s Resilient Therapy as the approach to help achieve it.