This edited collection gathers together Canadian and non-Canadian scholars to reflect on and celebrate the 20th anniversary of the Quebec Secession Reference, delivered by the Canadian Supreme Court in 1998. It opens with two Canadian scholars exchanging thoughts on the legacy of the reference from a domestic perspective as one of the most questioned decisions of the Canadian Supreme Court. To follow, non-Canadian scholars discuss the impact of this reference abroad, reflecting upon its influence in European and non-European contexts (Spain, Scotland, the EU after Brexit, Eastern European Countries, Ethiopia, and Asia). Two final chapters, one by a lawyer and one by a political scientist, explore the democratic theory behind that reference.