This book comprises chapters by key legal scholars and practitioners from the Americas, Europe, Asia, Oceania and Africa. It examines the evolution, theoretical constructs and institutional features of legal capacity, as well as the specific ways in which evolving principles, rights and standards derived from disability law and human rights are impacting and transforming the law. The book also explores emerging and persistent legal questions, as well as the challenges in conceiving, designing and implementing more comprehensive reforms in legal capacity regimes.