The book begins by establishing a theoretical framework, drawing from political science, law, and communication studies. It then analyzes specific platform policies, such as those related to hate speech and misinformation, and examines the legal and regulatory landscapes in different regions. Case studies of content moderation decisions illustrate the challenges platforms face in balancing conflicting values. By evaluating the impact of these policies on political participation and democratic institutions, ""Social Media Governance"" offers a nuanced perspective on one of the most pressing issues of our time.