This edited volume arises from an important, even revolutionary, insight: both legal institutions and law itself are products of deliberate design decisions. By critiquing law’s design, legal designers open up the possibility of alternative approaches to problem-solving for individuals and communities. One strength of legal design as it stands today is its breadth, with relevance to every interaction with law and legal institutions. Legal design crosses boundaries of all sorts, from the international to the hyper-local, constitutional to regulatory law, and litigation to drafting. It even offers opportunities to envision entirely new models for mediating between individuals and society that do not rely on existing conceptions of the rule of law. The contributors to this pathbreaking, agenda-setting volume are the dreamers and doers of the legal design movement. Welcome to the revolution!