These infographics from the King’s Fund and the Local Government Association set out key facts about the public health system and the return on investment for some public health interventions. They show the changing demographics with a growing ageing population and the impact of social and behavioural determinants on people’s health. The document also highlights the costs of key health and social services and estimates the potential returns on investment on preventative interventions. For instance, Birmingham’s Be Active programme of free use of leisure centres and other initiatives returned an estimated £23 in quality of life, reduced NHS use and other gains for every £1 spent. Every £1 spent on improving homes saves the NHS £70 over 10 years. Befriending services have been estimated to pay back around £3.75 in reduced mental health service spending and improvements in health for every £1 spent. Every £1 spent on drugs treatment saves society £2.50 in reduced NHS and social care costs and reduced crime.