In 13 papers from a conference in Aarhus, Denmark during June 2017, contributors in the social sciences, technology, and law explore how the culture of measuring is convincing people to measure themselves in various ways. Their topics include the digitization of welfare: a strategy towards improving citizens' self-care and co-management of welfare, resonating self-tracking practices: empirical insights into theoretical reflections on a Sociology of Resonance, doing calories: the practices of dieting using calorie-counting app MyFitnessPal, a quantified self report card: ethical considerations of privacy as commodity, and the limits of ratio: an analysis of New Public Management in Sweden using Nicholas of Cusa's understanding of reason.