I am a Senior Research Fellow at the Department of Information Studies, University College London (UCL). My research examines how social and spatial interactions shape the outcomes of people and places, drawing on quantitative methods, spatial analysis, and large-scale population data. I am affiliated with the UK Data Service, where I work on research support and infrastructure for census origin-destination data. I have held earlier appointments at UCL CeLSIUS, the Office for National Statistics, and the Welsh Government, and have broad experience with population data (and their metadata) spanning censuses, administrative records, and digital traces, and with their use in research and policy.