This book examines the relevant regulatory responses to internet pornography, with particular reference to the UK, but also drawing comparisons with other countries where relevant. It argues that the internet has fundamentally, and in many ways irreversibly, changed the regulation of pornography. Classifying internet pornography into three broad categories – child pornography, extreme pornography, and adult pornography – the book provides an in-depth analysis of the legal issues involved in regulating internet pornography, and argues that the notions of obscenity and indecency on their own will not provide an adequate basis for regulating online pornography. The book identifies the legitimising factors that will lend credibility and normative force to the law in order to successfully regulate pornography in cyberspace. It is the only comprehensive text that rigorously addresses the regulation of internet pornography as a whole, and offers valuable insights that will appeal to academics, students, policy makers, and those working in the areas of broader internet governance and online child protection.