Wide-ranging, deeply researched, and propulsively written, Deep Dark Data offers a timely and truly original investigation into the nature of 'personal' data and privacy.--Alix Johnson, author of Where Cloud Is Ground: Placing Data and Making Place in Iceland Deep Dark Data is a fascinating journey into the origins of personal data. Alison Cool expertly combines a historical perspective on informational privacy with an ethnography of Swedish data management.--Baki Cakici, Associate Professor, Technologies in Practice, IT University of Copenhagen