This book explores the contributory liability of Internet intermediaries that arises from trademark infringements committed by third parties on the Internet, providing a comprehensive analysis of the law applicable to the matter in an EU context. It also considers the applicable laws of Germany and England to demonstrate how the rules are implemented in national laws, as the current state of the law is two-tiered. In providing a framework of the law applicable to online contributory trademark liability, the book also addresses ongoing and emerging issues that are specific to trademark law and proposes specific solutions to the issues arising in the context of online contributory trademark liability.The liability of Internet intermediaries has been a popular and lively subject from different substantive rights' angles. However, trademark law has not received a great deal of attention from either scholars or legislators. As such, this book fills a gap in the literature by undertaking a trademark-specific examination, and will be of great interest to all those involved in the research and legal practice of trademark law.