In this timely book, Beata Maihaniemi analyses and evaluates how the characteristics of information as a good, as well as the characteristics of digital platforms, affect the application of competition law in both theory and practice. Chapters offer a full evaluation and in-depth analysis of several key case studies in which information such as big data has been obtained, made use of, sold, or biased in an uncompetitive way. Such critical case studies include the European Commission's 2017 judgement against Google for granting illegal advantage to their own comparison shopping service, as well as the Bundeskartellamt's decision regarding Facebook's unfair trading terms under which it was gathering users' data without their voluntary consent. Reacting to these cases, the book offers guidance on how competition law can evolve to accommodate digital markets, such as classifying information as 'commons' or 'commodity', in order to realise social goals such as fairness. Compelling and insightful, this book will prove an important companion for students and scholars studying digital markets, as well as competition law more widely. It will also appeal to practitioners working on cases involving the regulation and usage of big data.