Virtual and augmented reality raise significant questions for law and policy. When should virtual world activities or augmented reality images count as protected First Amendment ‘speech’, and when are they instead a nuisance or trespass? When does copying them infringe intellectual property laws? When should a person (or computer) face legal consequences for allegedly harmful virtual acts? The Research Handbook on the Law of Virtual and Augmented Reality addresses these questions and others, drawing upon free speech doctrine, criminal law, issues of data protection and privacy, legal rights for increasingly intelligent avatars, and issues of jurisdiction within virtual and augmented reality worlds.