Energy poverty – the inability to secure needed levels of energy services in the home – is widespread and expanding across Europe and the world. This policy brief brings together the initial findings and recommendations of the ENGAGER 2017-2021 Action, supported by COST (European Co-Operation in Science and Technology). ENGAGER brings together a diverse and extensive body of stakeholders to help understand and address the energy poverty challenge. ENGAGER consists of four Working Groups (WGs), which have each prepared a separate section in the brief.