Book excerpt: Online content moderation is a well-known phenomenon. However, no consistent pattern exists on how it is done or how it is legally dealt with. This book addresses the complex issue of questionable content removals and account suspensions on social media platforms in the European Union, solving the existing legal ambiguity with a powerful roadmap designed to guide decision-makers in navigating online access rights and moderation issues. The roadmap’s elements are deduced from a technology-neutral comparative case law study of four Member States (Denmark, Germany, Italy, and the Netherlands) based on rigorous selection criteria that highlight the most salient distinctions that characterise legal approaches to social media access and moderation. The ‘layers’ of the roadmap focus on such central issues as the following: the legal basis for social media platforms to impose restrictions; platform operators’ right to shape access, including limitations to the platform’s right to exclude users; the validity and enforceability of terms of service; and users’ and platforms’ remedies for breaches of the terms of service, including the procedural obligations in the Digital Services Act. Unlike previous work on the topic, this book does not focus on one field of law but touches upon and combines European law, constitutional and fundamental rights law, competition law, equality law, property law, and contract law, all reflected on and assessed through both a European and a national lens. By addressing these multifaceted legal aspects, it offers a holistic approach to resolving content moderation challenges and demonstrates which problems are most effectively addressed by which fields of law. The book’s roadmap can be used within the European Union to address and/or resolve any access and moderation problems on social media platforms. It will serve as a valuable resource for judges, social media platforms, and dispute resolution bodies, providing practical insights and guidance in navigating this complex landscape and streamlining decision-making processes. It will prove of immeasurable value in fostering a balanced and fair approach to content moderation in the EU that will ensure that all European users have equal opportunities for redress.