The rise of the Scottish national movement has been accompanied by the emergence of distinct constitutional ideas, claims and arguments, which may affect constitutional design in any future independent Scotland. Drawing on the fields of constitutional theory, comparative constitutional law, and Scottish studies, this book examines the historical trajectory of the constitutional question in Scotland and analyses the influences and constraints on the constitutional imagination of the Scottish national movement, in terms of both the national and international contexts. It identifies an emerging Scottish nationalist constitutional tradition that is distinct from British constitutional orthodoxies but nevertheless corresponds to broad global trends in constitutional thought and design. Much of the book is devoted to the detailed exposition and comparative analysis of the draft constitution for an independent Scotland published by the SNP in 2002. The 2014 draft interim Constitution presented by the Scottish Government is also examined, and the two texts are contrasted to show the changing nature of the SNP’s constitutional policy: from liberal-procedural constitutionalism in pursuit of a more inclusive polity, to a more populist and majoritarian constitutionalism.