Checklists and 13 user-friendly modules to support policy development and service planning. You can download the different modules directly from the website: https://www.who.int/mental_health/policy/essentialpackage1/en/ The purpose of the guidance package is to assist policy-makers and planners to: develop policies and comprehensive strategies for improving the mental health of populations; use existing resources to achieve the greatest possible benefits; provide effective services to those in need; assist the reintegration of persons with mental disorders into all aspects of community life, thus improving their overall quality of lif