This 'Research for city practice' article is aimed at city leaders, communities, and the professions involved in city policy and practice as well as researchers across many disciplines. It comprises 'City Know-Hows' summary for each main research paper, allowing researchers to explain new knowledge and key messages arising from their work. The full special issue also contains a case study, where you will find evaluations of an intervention, and a commentary piece, supporting the conversations we need to help develop and mobilize important and innovative thinking. It is imperative that human health and environmental impacts become core foci of urban policies around the world. Changing our current trajectory will require concerted action. Cities & Health aims to be part of that change; it is dedicated to supporting the flow of knowledge, in all directions, to help make this happen. In order to strengthen communities of interest, we would like to include many and varied voices, including those from practitioners, communities, politicians and policy-makers and researchers who are supporting health and health equity in everyday urban lives. Whether you are a just starting out on your journey, or an old hand, we would love to hear from you! ; info:eu-repo/semantics/publishedVersion