This Research Handbook provides a comprehensive overview of scholarship on not-for-profit law. The chapters, written by world leading experts, explore key ideas and debates in relation to: theories of the not-for-profit sector, the composition and scope of that sector, not-for-profit organisations and the constitution, the legal conception of charity, the tax treatment of not-for-profit organisations and the regulation of not-for-profits. The book serves to represent not-for-profit law as a field of academic inquiry, and to point the way to future research in that field.