Sætnan, Schneider and Green: The politics of Big Data: Big Data, big brother? Introduction to the volume Section One) Principles and Paradigms: Questioning the tenets of Big Data 2) Saetnan: The haystack fallacy, or why Big Data provides little security 3) Matzner: Grasping the ethics and politics of algorithms 4) Strauss: Big Data - within the tides of securitisation? 5) Matzner: Surveillance as critical paradigm for Big Data? Section Two) Big Data Policies: Politics of Governance and Regulation 6) Rieder: Tracing Big Data imaginaries through public policy: The case of the European Commission 7) Pasquale: The automated public sphere 8) Schneider: Bringing the state back in: Big Data-based capitalism, disruption, and novel regulatory approaches in Europe 9) Simões and Jerónimo: Rear window - transparent citizens versus political participation 10) Tøndel and Sætnan: Fading dots, disappearing lines - Surveillance and Big Data in news media after the Snowden revelations Section Three) Performance is Political: Big Data Practices, Performance, and Resistance 11) Bellanova and Gonzalez Fuster: No (Big) Data, no fiction? Thinking surveillance with/against Netflix 12) Fleischhack: 'Data trainings' in German schools - Learning empowerment from hackers 13) Ochs: Self-protection beyond the self: Collective privacy practices in (Big) datascapes 14) Noorman/Wessels/Sveinsdottir/Wyatt: Understanding the 'open' in making research data open: Policy rhetoric and research practice Postscript: 15) Green: Postscript: Big Data's methodological challenges.