The subject of the PREPO 1 project is the prevention and promotion of mental health and the prevention of the development of mental illness in adults in the Czech Republic by increasing mental health literacy. The essence of the project is the development and testing of measures to increase mental literacy as an effective prevention of mental illness and related social exclusion among at-risk groups in the Czech Republic. The project includes verification and dissemination of measures to the professional public and exploitation of project outputs to public institutions.