<p>New Perspectives in Critical Data Studies: The Ambivalences of Data Power—An Introduction.- Part I Global Infrastructures and Local Invisibilities.- Data Power and Counter-power with Chinese Characteristics.- Transnational Networks of Influence: The Twitter Presence of the Quantified Self and Maker Movements’ Organizational Elites.- The Power of Data Science Ontogeny: Thick Data Studies on the Indian IT Skill Tutoring Microcosm.- Fighting the “System”: A Pilot Project on the Opacity of Algorithms in Political Communication.- Indigenous Peoples, Data, and the Coloniality of Surveillance.- Part II State and Data Justice.- The Datafied Welfare State: A Perspective from the UK.- The Value Dynamics of Data Capitalism: Cultural Production and Consumption in a Datafied World.- Mapping Data Justice as a Multidimensional Concept Through Feminist and Legal Perspectives.- Reconfiguring Education Through Data: How Data Practices Reconfigure Teacher Professionalism and Curriculum.- Public Values and Technological Change: Mapping how Municipalities Grapple with Data Ethics.- Welfare Data Society? Critical Evaluation of the Possibilities of Developing Data Infrastructure Literacy from User Data Workshops to Public Service Media.- Part III Everyday Practices and Collective Action.- (Not) Safe to Use: Insecurities in Everyday Data Practices with Period-Tracking Apps.- Community Rankings and Affective Discipline: The Case of Fandometrics.- Affinity Spaces as an Analytical Lens for Attending to Temporality in Critical Data Studies: The Case of COVID-19-Related, Educational Twitter Communication.- “Party like it’s December 31, 1983”: Supporting Data Literacy at CryptoParties.- Researching Public Trust in Datafication: Reflections on the Deliberative Citizen Jury as Method.- Worker Perspectives on Designs for a Crowdwork Co-operative.- Counting, Debunking, Making, Witnessing, Shielding: What Critical Data Studies Can Learn from Data Activism During the Pandemic.</p>